EP3023383A2 - Valve-integrating container, liquid withdrawing device equipped with the same, and method for manufacturing valve-integrating container - Google Patents
Valve-integrating container, liquid withdrawing device equipped with the same, and method for manufacturing valve-integrating container Download PDFInfo
- Publication number
- EP3023383A2 EP3023383A2 EP15194842.9A EP15194842A EP3023383A2 EP 3023383 A2 EP3023383 A2 EP 3023383A2 EP 15194842 A EP15194842 A EP 15194842A EP 3023383 A2 EP3023383 A2 EP 3023383A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- diameter portion
- container
- valve
- enlarged
- reduced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 238000005304 joining Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 29
- 238000003825 pressing Methods 0.000 description 22
- 239000012528 membrane Substances 0.000 description 19
- 239000011347 resin Substances 0.000 description 10
- 229920005989 resin Polymers 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 238000007789 sealing Methods 0.000 description 8
- 238000003860 storage Methods 0.000 description 8
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- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/36—Arrangements of flow- or pressure-control valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
- B65D41/04—Threaded or like caps or cap-like covers secured by rotation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D51/00—Closures not otherwise provided for
- B65D51/16—Closures not otherwise provided for with means for venting air or gas
- B65D51/1605—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior
- B65D51/1616—Closures not otherwise provided for with means for venting air or gas whereby the interior of the container is maintained in permanent gaseous communication with the exterior by means of a filter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
- B67D7/0277—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants using negative pressure
- B67D7/0283—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants using negative pressure specially adapted for transferring liquids of high purity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
- B67D7/0288—Container connection means
- B67D7/0294—Combined with valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/52—Containers specially adapted for storing or dispensing a reagent
- B01L3/523—Containers specially adapted for storing or dispensing a reagent with means for closing or opening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
- B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
- B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
- B65D47/0809—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage and elastically biased towards both the open and the closed positions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D2210/00—Indexing scheme relating to aspects and details of apparatus or devices for dispensing beverages on draught or for controlling flow of liquids under gravity from storage containers for dispensing purposes
- B67D2210/00002—Purifying means
- B67D2210/00005—Filters
- B67D2210/00007—Filters for gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D2210/00—Indexing scheme relating to aspects and details of apparatus or devices for dispensing beverages on draught or for controlling flow of liquids under gravity from storage containers for dispensing purposes
- B67D2210/00002—Purifying means
- B67D2210/00005—Filters
- B67D2210/0001—Filters for liquid
Definitions
- the present invention relates to a valve-integrating container, a liquid withdrawing device equipped with the same, and a method for manufacturing the valve-integrating container.
- a liquid such as chemicals used for semiconductor manufacturing apparatuses and general chemicals is charged into a storage container at a production plant, and is then shipped with a cap attached to an opening portion formed on the storage container. It is known that a special cap with piping fixed thereto is attached to the opening portion for withdrawing the liquid stored in such a storage container (for example, refer to PTL 1).
- the liquid stored in the storage container can be drawn up through the piping or withdrawn by supplying a gas for pumping out the liquid into the storage container.
- the storage container filled with a liquid at a production plant is transported with a cap attached thereto and the cap is removed to be replaced with the special cap at a site of use.
- the piping is installed to the special cap as it is, it requires a process of coupling itself to piping toward which the liquid is supplied at the site.
- the process may involve attaching a plug to the piping installed to the special cap and coupling the plug to a socket attached to the piping toward which the liquid is supplied.
- the technique disclosed in PTL 1 requires a process of removing the cap of the storage container to replace the cap with the special cap and a process of attaching the plug to the piping installed to the special cap before the liquid can be withdrawn.
- the present invention has been made under such a circumference and an object of the present invention is to provide a downsized valve-integrating container which enables a liquid inside a container to be withdrawn easily and safely without leaving any residue, a liquid withdrawing device equipped with the same, and a method for manufacturing the valve-integrating container.
- a valve-integrating container includes: a container body formed in a cylindrical shape extending in an axial direction, the container body having an enlarged-diameter portion, a reduced-diameter portion provided below the enlarged-diameter portion, and a connecting portion connecting the enlarged-diameter portion and the reduced-diameter portion; and a valve mechanism mounted to the reduced-diameter portion of the container body and switching whether a liquid stored in the container body is allowed to flow out through a first opening portion provided at a lower end of the reduced-diameter portion, the valve mechanism including: a spring disposed along the axial direction; a spring supporting part supporting one end portion of the spring; and a valve plug disposed between the spring supporting part and the first opening portion and receiving a biasing force toward the first opening portion from another end portion of the spring, the spring supporting part including: a liquid flow channel formed in a cylindrical shape extending along the axial direction; a lower end portion mounted to an inner circumferential surface of
- the valve mechanism switching whether the liquid stored in the container body is allowed to flow out is mounted to the reduced-diameter portion provided at a lower portion of the container body.
- the valve plug of the valve mechanism receives a biasing force from the spring in a direction toward the first opening portion provided at the lower end of the reduced-diameter portion.
- the spring supporting part supporting the one end portion of the spring is mounted to the inner circumferential surface of the reduced-diameter portion at its lower end portion and projects toward the enlarged-diameter portion of the container body at its upper end portion. This shortens the length of the valve-integrating container in the axial direction to downsize it as compared with the case where the spring supporting part does not project toward the enlarged-diameter portion of the container body.
- the liquid is led to the first opening portion by the liquid flow channel formed in the spring supporting part. Meanwhile, if the level of the liquid stored in the container body is lower than the upper end of the spring supporting part projecting toward the enlarged-diameter portion, the liquid does not flow through the liquid flow channel formed in the spring supporting part.
- the valve-integrating container of this aspect if the level of the liquid is lower than the upper end of the spring supporting part, the liquid stored in the connecting portion connecting the enlarged-diameter portion and the reduced-diameter portion of the container body is guided downwardly in the axial direction by the first guide groove formed on the outer circumferential surface of the spring supporting part. The liquid guided by the first guide groove will be led to the first opening portion by the second guide groove formed on the outer circumferential surface of the valve plug.
- valve-integrating container of this aspect by mounting the valve-integrating container to, for example, a server device having a projection portion moving the valve plug away from the first opening portion, the worker can easily and safely withdraw the liquid inside the container without touching the liquid.
- valve-integrating container of this aspect there can be provided a downsized valve-integrating container which enables a liquid inside a container to be withdrawn easily and safely without leaving any residue.
- a valve-integrating container may be configured to include a filter part attached to an upper portion of the container body, the filter part letting a gas flow into and out of the container body while preventing a liquid from flowing into and out of the container body.
- the filter part because the filter part lets a gas flow into and out of the container body, a gas can be led into the container body from the outside for volume displacement of a liquid having flowed out through the first opening portion.
- a gas generated inside the container body for example, is discharged to the outside, thereby avoiding high pressure inside the container body.
- the filter part prevents a liquid or foreign matter having a particle diameter larger than that of a liquid from entering into the container body from outside while preventing a liquid from flowing out of the container body.
- the container body may include a cylindrical second opening portion provided above the enlarged-diameter portion, the second opening portion extending in the axial direction and carrying external threads on an outer circumferential surface thereof, and a cap carrying on an inner circumferential surface thereof internal threads to be fastened to the external threads formed on the second opening portion, and the filter part may be attached to the cap.
- the enlarged-diameter portion may include a first enlarged-diameter portion integrally molded with the reduced-diameter portion and the connecting portion and a second enlarged-diameter portion provided above the first enlarged-diameter portion, and an upper end of the first enlarged-diameter portion and a lower end of the second enlarged-diameter portion may be joined together by heat welding.
- the container body can be formed by joining by heat welding a member prepared by integrally molding the reduced-diameter portion, the connecting portion, and the first enlarged-diameter portion, and a member forming the second enlarged-diameter portion. Accordingly, the container body can be manufactured easily as compared with integrally molding all of the reduced-diameter portion, the connecting portion, and the enlarged-diameter portion as a single member.
- a liquid withdrawing device includes any of the above valve-integrating containers, and a server device removably receiving the valve-integrating container and withdrawing the liquid stored in the valve-integrating container, the server device including: a recess into which the reduced-diameter portion of the container body is inserted; a projection portion contacting a tip portion of the valve plug when the reduced-diameter portion is inserted in the recess, to move the valve plug away from the first opening portion; and a locking mechanism establishing a locked state where the reduced-diameter portion is fixed to the recess in response to insertion of the reduced-diameter portion into the recess and establishing an unlocked state where the reduced-diameter portion is removable from the recess in response to an operator's unlocking operation.
- the reduced-diameter portion of the container body is locked as it is fixed in the recess in response to insertion of any of the above valve-integrating container into the recess of the server device. Also, the tip portion of the valve plug of the valve-integrating container contacts the projection portion of the server device to be moved away from the first opening portion, and thus the liquid stored in the valve-integrating container can be withdrawn through the first opening portion.
- a liquid withdrawing device equipped with a downsized valve-integrating container which enables a liquid inside the container to be withdrawn easily and safely without leaving any residue.
- a liquid withdrawing device may be configured such that the recess of the server device has on an inner circumferential surface thereof groove portions extending in the axial direction at a plurality of points around the axis, the reduced-diameter portion of the valve-integrating container has on an outer circumferential surface thereof projection portions extending in the axial direction at a plurality of points around the axis, a plurality of positions of the groove portions around the axis correspond to a plurality of positions of the projection portions around the axis, and the valve-integrating container is mounted to the server device by inserting the projection portions at the plurality of points into the groove portions at the plurality of points.
- the projection portions at the plurality of points cannot be inserted into the groove portions at the plurality of points, thereby preventing the valve-integrating container from being mounted to the server device. Therefore, in situations in which there are a plurality of valve-integrating containers each containing a different liquid and their respective server devices, misconnection between the valve-integrating containers and the server devices can be prevented.
- a method for manufacturing a valve-integrating container includes the steps of: forming a lower end side container formed in a cylindrical shape extending in an axial direction and including a first enlarged-diameter portion, a reduced-diameter portion provided below the first enlarged-diameter portion, and a connecting portion connecting the first enlarged-diameter portion and the reduced-diameter portion; forming an upper end side container having a second enlarged-diameter portion at a lower portion thereof by cutting off a base portion from a container having a second opening portion at an upper end side and a base at a lower end side; joining by heat welding an upper end of the first enlarged-diameter portion of the lower end side container to a lower end of the second enlarged-diameter portion of the upper end side container; mounting a valve mechanism switching whether a liquid is allowed to flow out through a first opening portion provided at a lower end of the reduced-diameter portion, to the reduced-dia
- the base portion is cut off from a container having the second opening portion at the upper end side and the base at the lower end side, thereby forming the upper end side container having the second enlarged-diameter portion at its lower portion.
- the upper end side container can be formed from a container of a commonly used shape.
- the upper end of the first enlarged-diameter portion of the lower end side container and the lower end of the second enlarged-diameter portion of the upper end side container are joined together by heat welding, and after that the valve mechanism is inserted through the second opening portion of the upper end side container to be mounted to the reduced-diameter portion of the lower end side container.
- the valve mechanism is mounted to the lower end side container, the liquid is poured into the container body, and then the cap is fastened, and thus this seals the liquid in the valve-integrating container.
- valve-integrating container in accordance with an aspect of the present invention, there is provided a downsized valve-integrating container which enables a liquid inside a container to be withdrawn easily and safely without leaving any residue.
- a downsized valve-integrating container which enables a liquid inside a container to be withdrawn easily and safely without leaving any residue, a liquid withdrawing device equipped with the same, and a method for manufacturing the valve-integrating container.
- the liquid withdrawing device 300 of the embodiment includes a valve-integrating container 100 and a server device 200.
- the valve-integrating container 100 is mounted to the server device 200, and then a liquid stored in the valve-integrating container 100 is withdrawn to be supplied to the outside through the server device 200.
- the valve-integrating container 100 can store various kinds of liquids, such as chemicals used for semiconductor manufacturing apparatuses and general chemicals.
- valve-integrating container 100 of the embodiment will be described.
- the valve-integrating container 100 includes a container body 10, a valve mechanism 20, a cap 30, a filter part 40, and an identification ring 50.
- the container body 10 includes an enlarged-diameter portion 11, a reduced-diameter portion 12, a connecting portion 13, and an opening portion 14 (second opening portion), and stores a liquid inside.
- the container body 10 is formed in a cylindrical shape extending along an axis X.
- the reduced-diameter portion 12 is provided below the enlarged-diameter portion 11 and connected to the enlarged-diameter portion 11 by the connecting portion 13.
- the enlarged-diameter portion 11 includes a first enlarged-diameter portion 11a and a second enlarged-diameter portion 11b positioned upper than the first enlarged-diameter portion 11a along the axis X.
- the first enlarged-diameter portion 11a is integrally molded with the reduced-diameter portion 12 and the connecting portion 13 from a resin material (e.g., fluorine resin material).
- the first enlarged-diameter portion 11a and the second enlarged-diameter portion 11b are joined together by heat welding.
- the opening portion 14 is provided above the enlarged-diameter portion 11 and formed in a cylindrical shape extending along the axis X, and carries external threads 14a on its outer circumferential surface.
- the valve mechanism 20 switches whether the liquid stored in the container body 10 is allowed to flow out through an opening portion 12a (first opening portion) provided at a lower end of the reduced-diameter portion 12 of the container body 10. As shown in Fig. 2 , the valve mechanism 20 is mounted on an inner circumferential surface of the reduced-diameter portion 12 of the container body 10.
- the valve mechanism 20 includes a spring 21, a spring supporting part 22, and a valve plug 23.
- Each part constituting the valve mechanism 20 is formed from a resin material (e.g., fluorine resin material).
- the spring 21 is an elastic member formed in a bellows shape which is extendable along the axis X.
- the spring supporting part 22 supports one end portion 21a of the spring 21 provided along the axis X.
- the valve plug 23 is positioned between the spring supporting part 22 and the opening portion 12a and receives a biasing force from the other end portion 21b of the spring 21 in a direction toward the opening portion 12a.
- the spring supporting part 22 of the valve mechanism 20 has a liquid flow channel 22a formed in a cylindrical shape extending along the axis X.
- the spring supporting part 22 carries external threads on an outer circumferential surface of its lower end portion 22b.
- the spring supporting part 22 is mounted to the reduced-diameter portion 12 as the external threads on the outer circumferential surface of the lower end portion 22b is fastened to internal threads 12b formed on the inner circumferential surface of the reduced-diameter portion 12 (refer to Fig. 3 ).
- an upper end portion 22c of the spring supporting part 22 is positioned to project toward the enlarged-diameter portion 11.
- the spring supporting part 22 has on its outer circumferential surface a guide groove 22d (first guide groove) for guiding the liquid stored in the connecting portion 13 of the container body 10 downwardly along the axis X.
- the valve plug 23 of the valve mechanism 20 receives the biasing force from the other end portion 21b of the spring 21 in the direction toward the opening portion 12a to contact the opening portion 12a.
- a tip portion 23b of the valve plug 23 when a tip portion 23b of the valve plug 23 is in contact with the opening portion 12a of the container body 10, the liquid stored inside the container body 10 cannot be withdrawn through the opening portion 12a.
- the tip portion 23b of the valve plug 23 is away from the opening portion 12a of the container body 10 as shown in Fig. 1 , the liquid stored inside the container body 10 can be withdrawn through the opening portion 12a.
- the position of the tip portion 23b of the valve plug 23 on the axis X is the same with or higher than a lower end surface of the opening portion 12a.
- the tip portion 23b of the valve plug 23 does not project downwardly through the opening portion 12a along the axis X, and accommodated in the reduced-diameter portion 12. Accordingly, the tip portion 23b of the valve plug 23 does not move away from the opening portion 12a in the state shown in Fig. 2 , even when a plate-like member contacts the opening portion 12a or the opening portion 12a contacts a plane. Therefore, the liquid stored inside the container body 10 will not be withdrawn through the opening portion 12a even when a plate-like member contacts the opening portion 12a or the opening portion 12a contacts a plane.
- the valve plug 23 has on its outer circumferential surface a guide groove 23a (second guide groove) for guiding the liquid guided from the connecting portion 13 of the container body 10 by the guide groove 22d, downwardly along the axis X to the opening portion 12a.
- a guide groove 23a second guide groove
- the valve mechanism 20 is configured such that the spring 21 is accommodated in the spring supporting part 22 at the one end portion 21a and accommodated in the valve plug 23 at the other end portion 21b.
- the spring supporting part 22 and the valve plug 23 respectively have on their outer circumferential surfaces the guide groove 22d and the guide groove 23a each extending along the axis X.
- Fig. 4 is a side view of the valve mechanism 20 shown in Fig. 2 as seen from the right.
- the guide groove 22d formed on the outer circumferential surface of the spring supporting part 22 is provided at three points around the axis X such that they are evenly spaced from each other.
- the three guide grooves 22d form flow channels through which the liquid flows between the inner circumferential surface of the reduced-diameter portion 12 and the spring supporting part 22 to lead the liquid stored in the connecting portion 13 downwardly.
- the guide groove 23a formed on the outer circumferential surface of the valve plug 23 is provided at four points around the axis X such that they are evenly spaced from each other.
- the four guide grooves 23a form flow channels through which the liquid flows between the inner circumferential surface of the reduced-diameter portion 12 and the valve plug 23.
- a clearance 22e is provided between an end of the spring supporting part 22 and the inner circumferential surface of the reduced-diameter portion 12, with the spring supporting part 22 fastened to the inner circumferential surface of the reduced-diameter portion 12.
- the liquid led by the guide grooves 22d from the connecting portion 13 flows through the clearance 22e into the guide grooves 23a and will be led downwardly toward the opening portion 12a.
- a level of the liquid stored in the container body 10 is higher than S1 which corresponds to an upper end of the valve mechanism 20 as shown in Fig. 1 (e.g., the level S0 shown in Fig. 1 )
- the liquid stored in the container body 10 is led through the liquid flow channel 22a of the spring supporting part 22 to the opening portion 12a. Meanwhile, if the level of the liquid stored in the container body 10 is lower than S1, the liquid is not led through the liquid flow channel 22a to the opening portion 12a.
- the liquid stored in the container body 10 is led through the guide grooves 22d and the guide grooves 23a to the opening portion 12a whether the level of the liquid stored in the container body 10 is higher or lower than S1. Accordingly, even when the level of the liquid declines below S1 and the liquid cannot be led through the liquid flow channel 22a of the spring supporting part 22 to the opening portion 12a, the liquid can be withdrawn to the outside without leaving any residue in the connecting portion 13. Meanwhile, when the level of the liquid is higher than S1 (e.g., the level S0 shown in Fig. 1 ), the liquid stored in the container body 10 is led to the opening portion 12a through the liquid flow channel 22a, as well as through the guide grooves 22d and the guide grooves 23a.
- S1 e.g., the level S0 shown in Fig. 1
- the liquid stored in the container body 10 is led to the opening portion 12a through the guide grooves 22d and the guide grooves 23a even if the liquid flow channel 22a is not provided and the upper end portion 22c of the spring supporting part 22 is blocked, it is advantageous to provide the liquid flow channel 22a. If the upper end portion 22c of the spring supporting part 22 is blocked, air bubbles lodge inside the spring supporting part 22. In contrast, air bubbles led into the spring supporting part 22 will be led to the container body 10 by providing the liquid flow channel 22a in the spring supporting part 22.
- the cap 30 is attached to the opening portion 14 positioned at the upper portion of the container body 10.
- the cap 30 is attached to the container body 10 as internal threads 30a formed on an inner circumferential surface of the cap 30 is fastened to the external threads 14a formed on the outer circumferential surface of the opening portion 14.
- the filter part 40 is attached to the center of an upper end surface of the cap 30.
- the filter part 40 lets a gas flow into and out of the container body 10, while preventing a liquid from flowing into and out of the container body 10. As shown in Figs. 1 to 3 , the filter part 40 is attached to the central portion of an upper end of the cap 30 attached to the upper portion of the container body 10.
- the filter part 40 includes a membrane filter 40a, coarse filters 40b, and a lid portion 40c.
- the membrane filter 40a and the coarse filters 40b are thin films each having a circular shape in a plan view, and they are arranged such that the membrane filter 40a is sandwiched between the two coarse filters 40b.
- the membrane filter 40a and the coarse filters 40b are positioned as they are sandwiched between the central portion of the upper end surface of the cap 30 and the lid portion 40c.
- the lid portion 40c is joined to the cap 30 by ultrasonic welding as it is attached to the cap 30.
- the membrane filter 40a and the coarse filters 40b are placed where the lid portion 40c and the cap 30 are ultrasonic-welded together.
- a resin material melted by the ultrasonic welding of the lid portion 40c and the cap 30 fixes the membrane filter 40a and the coarse filters 40b.
- the membrane filter 40a is a porous thin film formed from a fluorine resin, for example.
- a membrane filter 40a with a pore size of, for example, about 0.22 ⁇ m, foreign matter is prevented from mixing into the container body 10 from outside.
- the membrane filter 40a whose pore size is very small, has a property of preventing a liquid having a surface tension of a certain level or more from passing therethrough.
- the pore of the membrane filter 40a is sized to prevent the liquid in the container body 10 from flowing out.
- the membrane filter 40a which is porous, lets gas flow into and out of the container body 10.
- the coarse filters 40b are provided at both sides of the membrane filter 40a for preventing foreign matter from entering into the container body 10 due to deformation of the membrane filter 40a which might increase some pores in size.
- the cap 30 has a vent 30b formed on its upper end surface. Also, the lid portion 40c has a vent 40d at two points thereof. As shown in the plan view of Fig. 8 , a part of the vent 30b and parts of the vents 40d overlap with each other on a plane orthogonal to the axis X. Accordingly, a gas can flow into and out of the container body 10.
- the identification ring 50 is an annular member attached to the joint obtained by heat welding of the first enlarged-diameter portion 11a and the second enlarged-diameter portion 11b.
- the identification ring 50 has on its inner circumferential surface an endless groove extending around the axis X.
- the identification ring 50 is attached to the container body 10 as the groove formed on the inner circumferential surface engages the bead portion formed by heat welding of the first enlarged-diameter portion 11a and the second enlarged-diameter portion 11b.
- server device 200 Next, the server device 200 will be described.
- the server device 200 removably receives the valve-integrating container 100 and withdraws the liquid stored in the valve-integrating container 100.
- the server device 200 includes a first base member 210, a second base member 220, a third base member 230, a valve pressing member 240, a withdrawing member 250, a piping holding member 260, withdrawing piping 270, a locking mechanism 280, and a fastening bolt 290.
- the first base member 210 and the third base member 230 each have a square outline when viewed from above along the axis X.
- the first base member 210 has fastening holes carrying internal threads on its inner circumferential surface, at the four corners in a plan view.
- the third base member 230 has through holes at the four corners in a plan view such that the through holes correspond to the fastening holes of the first base member 210.
- the first base member 210 and the third base member 230 are coupled to each other by inserting a fastening bolt 290 carrying external threads on its outer circumferential surface into the third base member 230 from below to fasten the fastening bolt 290 to the fastening hole of the first base member 210.
- the second base member 220 is generally formed in a cylindrical shape extending along the axis X, and is fixed as it is sandwiched between the first base member 210 and the third base member 230.
- the second base member 220 carries external threads on its outer circumferential surface close to a lower end thereof, and the external threads is fastened to internal threads formed on an inner circumferential surface of third base member 230 around the axis X.
- an inner circumferential surface of the first base member 210 and an inner circumferential surface of the second base member 220 together form a recess 201, into which the reduced-diameter portion 12 of the container body 10 is inserted.
- An endless groove portion extending around the axis X is formed on the inner circumferential surface of the second base member 220 forming the recess 201, and an O ring 220b is attached to the groove portion.
- the O ring 220b contacts an outer circumferential surface of the reduced-diameter portion 12 to form a seal area along the entire circumference around the axis X.
- valve pressing member 240, the withdrawing member 250, the piping holding member 260, and the withdrawing piping 270 are placed one under another in this order at the central position of the second base member 220 along the axis X.
- the piping holding member 260 is generally formed in a cylindrical shape extending along the axis X and carries external threads on its outer circumferential surface.
- the piping holding member 260 is fixed to the second base member 220 as the external threads formed on the outer circumferential surface is fastened to internal threads formed on the inner circumferential surface of the second base member 220 around the axis X.
- the withdrawing member 250 is inserted from above along the axis X into the piping holding member 260 with the piping holding member 260 fixed to the third base member 230.
- the withdrawing member 250 has a liquid flow channel extending along the axis X at the center.
- the withdrawing piping 270 is fixed as sandwiched between the piping holding member 260 and the withdrawing member 250.
- the liquid led downwardly through the liquid flow channel formed in the withdrawing member 250 flows into the withdrawing piping 270.
- the valve pressing member 240 is inserted over the withdrawing member 250.
- the valve pressing member 240 is fixed to the second base member 220 as it is press-fitted into the second base member 220.
- the valve pressing member 240 has a projection portion 240a to press the tip portion 23b of the valve plug 23 upwardly along the axis X.
- the projection portion 240a contacts the tip portion 23b of the valve plug 23 to move the valve plug 23 away from the opening portion 12a.
- a recessed portion which is circular when viewed in a plan view and into which the projection portion 240a of the valve pressing member 240 is inserted is formed at the central position of the tip portion 23b of the valve plug 23 on the axis X.
- the recessed portion guides the projection portion 240a such that the projection portion 240a reliably contacts the tip portion 23b and prevents, even if the projection portion 240a deviates from the axis X, a force acting to deform the projection portion 240a.
- the valve pressing member 240 has liquid flow channels 240b penetrating therethrough in the direction of the axis X, at a plurality of points around the axis X. The liquid flowing out of the opening portion 12a will be led through the liquid flow channels 240b to the withdrawing member 250, with the valve plug 23 away from the opening portion 12a.
- the locking mechanism 280 establishes a locked state where the reduced-diameter portion 12 of the container body 10 is fixed to the recess 201 in response to insertion of the reduced-diameter portion 12 into the recess 201 and establishes an unlocked state where the reduced-diameter portion 12 is removable from the recess 201 in response to an operator's unlocking operation.
- the locking mechanism 280 includes an unlocking button 281, a pressing member 282, a locking member 283, and a spring 284.
- the unlocking button 281 receives the unlocking operation by the operator and connected to the pressing member 282.
- the unlocking button 281 and the pressing member 282 move from the position shown in Fig. 9 to the position shown in Fig. 10 when the operator performs the unlocking operation of pressing the unlocking button 281.
- An identification ring 281a attached to the unlocking button 281 have the same color or pattern as that of the identification ring 50 attached to the container body 10, for example.
- the worker can recognize that a pair of a valve-integrating container 100 and a server device 200 with the same color or pattern is associated with each other. This prevents misconnection of the valve-integrating container 100 and the server device 200.
- the locking member 283 is generally formed in a ring shape and is placed around the axis X.
- the locking member 283 has on its upper end surface an engaging groove 283a extending in a radial direction orthogonal to the axis X.
- the engaging groove 283a engages an engaging pin 220a mounted to the second base member 220.
- the moving direction of the locking member 283 is restricted such that the locking member 283 is movable only in a right-left direction in Figs. 9 and 10 .
- the spring 284 exerts a biasing force on the locking member 283 in a direction in which the locking member 283 is pressed against the pressing member 282.
- the locking member 283 is pressing the pressing member 282 leftward as in Figs. 9 and 10 into the state shown in Fig. 9.
- Fig. 9 shows the same state as that in Fig. 1 , where the locking member 283 projects into the recess 201. In this state, the locking member 283 projecting into the recess 201 engages a locking groove 12c (refer to Fig. 2 ) formed on the outer circumferential surface of the reduced-diameter portion 12.
- the locked state is established where the reduced-diameter portion 12 is fixed to the recess 201 as the locking member 283 engages the locking groove 12c.
- the pressing member 282 is pressing the locking member 283 rightward as in Figs. 9 and 10 into the state shown in Fig. 10 .
- the locking member 283 does not project into the recess 201.
- the locking member 283 does not engage the locking groove 12c (refer to Fig. 2 ) formed on the outer circumferential surface of the reduced-diameter portion 12. Because the locking member 283 is not engaged with the locking groove 12c, the unlocked state is established where the reduced-diameter portion 12 is removable from the recess 201.
- valve-integrating container 100 of the embodiment Next, a method for manufacturing the valve-integrating container 100 of the embodiment will be described.
- the container body 10 of the valve-integrating container 100 of the embodiment is formed by heat welding a lower end side container including the first enlarged-diameter portion 11a, the reduced-diameter portion 12, and the connecting portion 13 and an upper end side container including the second enlarged-diameter portion 11b and the opening portion 14.
- each of the upper end side container and the lower end side container is formed first.
- the upper end side container is formed by cutting off a base portion 10a from a container having a base at its lower end.
- the container body 10 with the base portion 10a cut off includes the second enlarged-diameter portion 11b and the opening portion 14.
- the lower end side container including the first enlarged-diameter portion 11a, the reduced-diameter portion 12, and the connecting portion 13 is formed by injection molding a resin material, for example.
- the both containers are positioned as shown in Fig. 12 .
- a lower end surface of the upper end side container and an upper end surface of the lower end side container are spaced from each other, and a heater plate 400 is placed the clearance therebetween.
- the heater plate 400 is heated by a heat source (not shown).
- the lower end surface of the upper end side container and the upper end surface of the lower end side container become melted at their end surfaces close to the heater plate 400 due to the radiant heat from the heater plate 400.
- the heater plate 400 is removed from the clearance between the lower end surface of the upper end side container and the lower end side container. Then, the lower end surface of the upper end side container and the upper end surface of the lower end side container whose resin materials are melted are brought close to each other along the axis X and into contact with each other. As shown in Fig.
- the container body 10 is formed in this way.
- valve mechanism 20 After forming the container body 10 shown in Fig. 13 , the valve mechanism 20 is inserted into the container body 10 from above the opening portion 14, and the external threads formed on the lower end portion 22b of the valve mechanism 20 are fastened to the internal threads formed on the inner circumferential surface of the reduced-diameter portion 12.
- the worker inserts a jig from the opening portion 14 to rotate the valve mechanism 20 about the axis X, thereby mounting the valve mechanism 20 to the reduced-diameter portion 12.
- the worker After mounting the valve mechanism 20 to the reduced-diameter portion 12, the worker fastens the cap 30 carrying the internal threads 30a on its inner circumferential surface to external threads 14a provided on the outer circumferential surface of the opening portion 14.
- valve-integrating container 100 shown in Fig. 2 is manufactured by the above series of work.
- the valve mechanism 20 switching whether the liquid stored in the container body 10 is allowed to flow out is mounted to the reduced-diameter portion 12 provided at a lower portion of the container body 10.
- the spring 21 exerts a biasing force on the valve plug 23 of the valve mechanism 20 in a direction toward the opening portion 12a provided at the lower end of the reduced-diameter portion 12.
- the spring supporting part 22 supporting the one end portion 21a of the spring 21 is mounted at the lower end portion 22b to the internal threads 12b on the inner circumferential surface of the reduced-diameter portion 12 and projects at the upper end portion 22c toward the enlarged-diameter portion 11 of the container body 10. This shortens the length of the valve-integrating container 100 along the axis X to downsize it as compared with the case where the spring supporting part 22 does not project toward the enlarged-diameter portion 11 of the container body 10.
- the liquid is led to the opening portion 12a by the liquid flow channel 22a formed in the spring supporting part 22. Meanwhile, if the level of the liquid stored in the container body 10 is lower than the upper end of the spring supporting part 22 projecting toward the enlarged-diameter portion 11, the liquid does not flow through the liquid flow channel 22a formed in the spring supporting part 22.
- the liquid stored at the connecting portion 13 connecting the enlarged-diameter portion 11 and the reduced-diameter portion 12 of the container body 10 is guided downwardly in the direction of the axis X by the guide grooves 22d formed on the outer circumferential surface of the spring supporting part 22 whether the level of the liquid is higher or lower than the upper end of the spring supporting part 22. Also, the liquid guided by the guide grooves 22d will be led by the guide grooves 23a formed on the outer circumferential surface of the valve plug 23 to the opening portion 12a.
- valve-integrating container 100 of the embodiment by mounting the valve-integrating container 100 to, for example, the server device 200 having the projection portion 240a moving the valve plug 23 away from the opening portion 12a, the worker can easily and safely withdraw the liquid inside the container body 10 without touching the liquid.
- valve-integrating container 100 of the embodiment there can be provided a downsized valve-integrating container 100 which enables a liquid inside a container to be withdrawn easily and safely without leaving any residue.
- the valve-integrating container 100 of the embodiment includes the filter part 40, which is attached to the upper portion of the container body 10 and lets a gas flow into and out of the container body 10, while preventing a liquid from flowing into and out of the container body 10.
- the filter part 40 lets a gas flow into and out of the container body 10, a gas can be led into the container body 10 from the outside for volume displacement of a liquid having flowed out through the opening portion 12a.
- a gas generating inside the container body 10 for example, is discharged to the outside, thereby avoiding high pressure inside the container body 10.
- the filter part 40 prevents a liquid or foreign matter having a particle diameter larger than that of a liquid from entering into the container body 10 from outside while preventing a liquid from flowing out of the container body 10.
- the container body 10 has the cylindrical opening portion 14 which is provided above the enlarged-diameter portion 11, extends along the axis X, and carries the external threads 14a on its outer circumferential surface.
- the container body 10 includes the cap 30 carrying on its inner circumferential surface the internal threads 30a to be fastened to the external threads 14a formed on the opening portion 14.
- the filter part 40 is attached to the cap 30.
- the enlarged-diameter portion 11 includes the first enlarged-diameter portion 11a integrally molded with the reduced-diameter portion 12 and the connecting portion 13 and the second enlarged-diameter portion 11b provided above the first enlarged-diameter portion 11a.
- the upper end of the first enlarged-diameter portion 11a is joined to the lower end of the second enlarged-diameter portion 11b by heat welding.
- the container body 10 can be formed by joining by heat welding a member prepared by integrally molding the reduced-diameter portion 12, the connecting portion 13, and the first enlarged-diameter portion 11a, and a member forming the second enlarged-diameter portion 11b. Accordingly, the container body 10 can be manufactured easily compared with integrally molding all of the reduced-diameter portion 12, the connecting portion 13, and the enlarged-diameter portion 11 as a single member.
- the reduced-diameter portion 12 of the container body 10 is locked as it is fixed in the recess 201 in response to insertion of the valve-integrating container 100 into the recess 201 of the server device 200. Also, the tip portion 23b of the valve plug 23 of the valve-integrating container 100 contacts the projection portion 240a of the server device 200 to be moved away from the opening portion 12a, and thus the liquid stored in the valve-integrating container 100 can be withdrawn through the opening portion 12a.
- a liquid withdrawing device 300 equipped with the downsized valve-integrating container 100 which enables a liquid inside the container to be withdrawn easily and safely without leaving any residue.
- the base portion 10a is cut off from the container having the opening portion 14 at the upper end side and the base at the lower end side, thereby forming the upper end side container having the second enlarged-diameter portion 11b at the lower portion.
- the upper end side container can be formed from a container of a commonly used shape.
- the upper end of the first enlarged-diameter portion 11a of the lower end side container and the lower end of the second enlarged-diameter portion 11b of the upper end side container are joined together by heat welding, and after that the valve mechanism 20 is inserted through the opening portion 14 of the upper end side container to be mounted to the reduced-diameter portion 12 of the lower end side container.
- the valve mechanism 20 is mounted to the lower end side container, the liquid is poured into the container body 10, and then the cap 30 is fastened, and thus this seals the liquid in the valve-integrating container 100.
- the second embodiment is a modification of the first embodiment, and is similar to the first embodiment unless otherwise described hereinafter.
- the cap 30 is attached to the upper portion of the container body 10.
- the container body 10 has at its upper end side a reduced-diameter portion 12', an enlarged-diameter portion 11c, and a connecting portion 13' while having a valve mechanism 20' mounted to an inner circumferential surface of the reduced-diameter portion 12'.
- a container body 10' of the embodiment includes an enlarged-diameter portion 11', a reduced-diameter portion 12, the connecting portion 13, the reduced-diameter portion 12', and the connecting portion 13' and stores a liquid inside.
- the container body 10' is formed in a cylindrical shape extending along the axis X.
- the reduced-diameter portion 12' is provided above the enlarged-diameter portion 11' and connected to the enlarged-diameter portion 11' by the connecting portion 13'.
- a valve mechanism 20 mounted to the reduced-diameter portion 12 projects toward the enlarged-diameter portion 11', while the valve mechanism 20' mounted to the reduced-diameter portion 12' does not project toward the enlarged-diameter portion 11' but is accommodated inside the reduced-diameter portion 12'. This is in order not to leave the valve mechanism 20' projecting toward the enlarged-diameter portion 11' when joining the enlarged-diameter portions 11c and 11b by heat welding.
- valve mechanism 20' is similar to that of the valve mechanism 20 described in the first embodiment and the description thereof will be omitted.
- a socket 500 shown in Fig. 15 or a socket 600 shown in Fig. 16 is attached to the reduced-diameter portion 12' shown in Fig. 14 .
- the socket 500 shown in Fig. 15 can maintain the inside of the container body 10' at atmospheric pressure.
- the socket 500 lets a gas flow into and out of the container body 10' in response to a change in the volume of the liquid in the container body 10', thereby maintaining the inside of the container body 10' at atmospheric pressure.
- a gas generated from the liquid in the container body 10' would flow out of the container body 10', thereby inhibiting pressurization of the container body 10' due to the gas.
- the socket 500 shown in Fig. 15 and the socket 600 shown in Fig. 16 are different in that the socket 600 can let a gas (e.g., a nitrogen gas) from an external gas supply source (not shown) flow into the container body 10' by installing a tube 700 (a member indicated by a dashed line in Fig. 16 ).
- a gas e.g., a nitrogen gas
- a gas is supplied from the gas supply source in response to a change in the volume of the liquid in the container body 10', thereby maintaining the inside of the container body 10' at an appropriate pressure.
- a socket 600 not provided with the tube installed thereto have similar functions as those of the socket 500, and can maintain the inside of the container body 10' at atmospheric pressure.
- the socket 500 shown in Fig. 15 includes a locking mechanism 510, a socket body 520, and a valve pressing member 530.
- the locking mechanism 510 establishes a locked state where the reduced-diameter portion 12' of the container body 10' is fixed to the socket body 520 in response to insertion of the reduced-diameter portion 12' of the container body 10' into the socket body 520 and establishes an unlocked state where the reduced-diameter portion 12' is removable from the socket body 520 in response to the operator's unlocking operation.
- the locking mechanism 510 includes a locking member 511 and a spring 512.
- the locking member 511 is generally formed in a ring shape and is placed around the axis X.
- the locking member 511 has on its lower end surface an engaging groove 511a extending in a radial direction orthogonal to the axis X.
- the engaging groove 511a engages an engaging pin 521 mounted to the socket body 520.
- the moving direction of the locking member 511 is restricted such that the locking member 511 is movable only in a right-left direction in Fig. 15 .
- a biasing force is exerted by the spring 512 on the locking member 511 in a direction from the left to the right in Fig. 15 .
- the locking member 511 is pressed in the right direction as in Fig. 15 , to project beyond an inner circumferential surface of the socket body 520.
- the locking member 511 projecting beyond the inner circumferential surface of the socket body 520 engages a locking groove 12'c (refer to Fig. 14 ) formed on an outer circumferential surface of the reduced-diameter portion 12'. Because the locking member 511 engages the locking groove 12'c, the locked state is established where the reduced-diameter portion 12' is fixed to the socket 500.
- the locking member 511 When the operator is holding down the locking member 511, the locking member 511 does not project beyond the inner circumferential surface of the socket body 520. In this state, the locking member 511 is not engaged with the locking groove 12'c (refer to Fig. 14 ) formed on the outer circumferential surface of the reduced-diameter portion 12'. Because the locking member 511 is not engaged with the locking groove 12'c, the unlocked state is established where the reduced-diameter portion 12' is removable from the socket body 520.
- the valve pressing member 530 is shaped generally in a cylinder carrying at its outer circumferential surface external threads to be fastened to internal threads formed on the inner circumferential surface of the socket body 520.
- the valve pressing member 530 is mounted to the socket body 520 as its external threads formed on the outer circumferential surface are fastened to the internal threads of the socket body 520.
- the valve pressing member 530 has a projection portion 530a to press a tip portion 23'b of a valve plug 23' of the valve mechanism 20' downwardly along the axis X.
- the projection portion 530a contacts the tip portion 23'b of the valve plug 23' to move the valve plug 23' away from the opening portion 12'a.
- the valve pressing member 530 has liquid flow channels 530b penetrating therethrough in the direction of the axis X, at a plurality of points around the axis X.
- the socket 500 includes a filter part 40' between the socket body 520 and the valve pressing member 530.
- the filter part 40' has a structure similar to that of the first embodiment where the membrane filter 40a is sandwiched between the coarse filters 40b.
- the filter part 40' lets a gas flow into and out of the container body 10', while preventing a liquid from flowing into and out of the container body 10'.
- the socket body 520 has on its inner circumferential surface an endless groove portion extending around the axis X, and an O ring 522 is attached to the groove portion.
- an O ring 522 is attached to the groove portion.
- the socket 600 shown in Fig. 16 includes a locking mechanism 610, a socket body 620, and a connecting member 630.
- the locking mechanism 610 establishes a locked state where the reduced-diameter portion 12' of the container body 10' is fixed to the socket body 620 in response to insertion of the reduced-diameter portion 12' into the socket body 620 and establishes an unlocked state where the reduced-diameter portion 12' is removable from the socket body 620 in response to the operator's unlocking operation.
- the locking mechanism 610 includes a locking member 611 and a spring 612.
- the locking member 611 has on its lower end surface an engaging groove 611a extending in a radial direction orthogonal to the axis X. As shown in Fig. 16 , the engaging groove 611a engages an engaging pin 621 mounted to the socket body 620. As a result, the moving direction of the locking member 611 is restricted such that the locking member 611 is movable only in a right-left direction in Fig. 16 .
- the locking mechanism 610 of Fig. 16 has a structure similar to that of the locking mechanism 510 in Fig. 15 , and the description thereof will be omitted.
- the socket body 620 has a projection portion 620a to press the tip portion 23'b of the valve plug 23' of the valve mechanism 20' downwardly along the axis X.
- the projection portion 620a contacts the tip portion 23'b of the valve plug 23' to move the valve plug 23' away from the opening portion 12'a.
- the socket body 620 has liquid flow channels 620b penetrating therethrough in the direction of the axis X, at a plurality of points around the axis X.
- the socket body 620 has the connecting member 630 mounted to its upper end portion.
- the connecting member 630 connects the socket body 620 to piping (not shown).
- the piping is inserted into the connecting member 630 to be fixed to the connecting member 630.
- a gas can flow into the socket body 620 from the external gas supply source (not shown).
- the connecting member 630 has on its inner circumferential surface an endless groove portion extending around the axis X.
- An O ring 631 which is a ring-shaped elastic member extending around the axis X, is attached to the groove portion.
- the O ring 631 contacts an outer circumferential surface of the tube 700 to form a seal area along the entire circumference around the axis X.
- the socket 600 includes a filter part 40' between the socket body 620 and the connecting member 630.
- the filter part 40' has a structure similar to that shown in Fig. 15 and similar to the configuration in which the membrane filter 40a is sandwiched between the coarse filters 40b as in the first embodiment.
- the filter part 40' lets a gas flow into and out of the container body 10', while preventing a liquid from flowing into and out of the container body 10'.
- the socket body 620 has on its inner circumferential surface an endless groove portion extending around the axis X, and an O ring 622 is attached to the groove portion.
- an O ring 622 is attached to the groove portion.
- a misconnection preventing ring 15 is attached to the outer circumferential surface of the reduced-diameter portion 12 of the valve-integrating container 100' of the embodiment.
- the misconnection preventing ring 15 has projection portions 15a and 15b extending in the direction of the axis X at two points around the axis X.
- a recess 201 of the server device 200' to which the valve-integrating container 100' is mounted has on its inner circumferential surface groove portions 211 and 212 extending in the direction of the axis X, at a plurality of points around the axis X.
- the server device 200' of the embodiment has a structure similar to that of the server device 200 of the first embodiment except that the groove portions 211 and 212 are formed.
- the positions of the groove portions 211 and 212 around the axis X correspond to those of the projection portions 15a and 15b shown in Fig. 17 around the axis X. Accordingly, in mounting the valve-integrating container 100' to the server device 200', the projection portion 15a is inserted into the groove portion 211, and the projection portion 15b is inserted into the groove portion 212. The valve-integrating container 100' is mounted to the server device 200' in this way.
- the valve-integrating container 100' is provided with the projection portions 15a and 15b and the server device 200' is provided with the groove portions 211 and 212 in order to prevent misconnection.
- different valve-integrating containers 100' stores different liquids. In this case, each valve-integrating container 100' needs to be mounted to its corresponding appropriate server device 200'. However, misconnection can occur in which a valve-integrating container 100' is mounted to a server device 200' not corresponding to the valve-integrating container 100'.
- valve-integrating container 100' is provided with the projection portions 15a and 15b
- server device 200' is provided with the groove portions 211 and 212 in order to provide a one to one correspondence between the valve-integrating containers 100' and the server devices 200'.
- a projection portion 15c may be provided instead of the projection portion 15b shown in Fig. 17
- a groove portion 213 may be provided instead of the groove portion 212 shown in Fig. 18 .
- This can provide another pair of a valve-integrating container 100' and a server device 200' which is different from the pair of the valve-integrating container 100' and the server device 200' shown in Figs. 17 and 18 .
- the projection portions 15a and 15b cannot be inserted into the groove portions 211 and 212 when the positions of the groove portions 211 and 212 around the axis X do not correspond to those of the projection portions 15a and 15b around the axis X, preventing the valve-integrating container 100' from being mounted to the server device 200'. Therefore, in situations in which there are a plurality of valve-integrating containers 100' each containing a different liquid and their respective server devices 200', misconnection between the valve-integrating containers 100' and the server devices 200' can be prevented.
- the third embodiment is a modification of the first embodiment and is similar to the first embodiment unless otherwise described hereinafter.
- the third embodiment has a cap 30', a modification of the cap 30 of the first embodiment.
- the cap 30' of the embodiment has a filter part 40" attached to its upper end surface.
- the filter part 40" includes a membrane filter 40"a, coarse filters 40"b, a lid portion 40"c, a filter attaching member 40"e, and a sealing cap 40"f.
- the membrane filter 40"a and the coarse filters 40"b are respectively similar to the membrane filter 40a and the coarse filters 40b of the first embodiment.
- the membrane filter 40"a and the coarse filters 40"b are placed as they are sandwiched between the lid portion 40"c and the filter attaching member 40"e.
- the lid portion 40"c is fixed to the cap 30' by, for example, welding.
- the lid portion 40"c has external threads on its upper portion outer circumferential surface, and the sealing cap 40"f with internal threads on its inner circumferential surface is attached to the external threads.
- the container body 10 having the cap 30' without the sealing cap 40"f attached to the cap 30' lets a gas flow into and out of the container body 10 through the filter part 40". Meanwhile, the container body 10 having the cap 30' with the sealing cap 40"f attached to the cap 30' prevents a gas from flowing into and out of the container body 10 through the filter part 40".
- a fitting e.g., a luer fitting
- piping not shown
- a gas is prevented from flowing into and out of the container body 10 by attaching the sealing cap 40"f to the cap 30', and a gas is let flow into and out of the container body 10 by removing the sealing cap 40"f from the cap 30'.
Abstract
Description
- The present invention relates to a valve-integrating container, a liquid withdrawing device equipped with the same, and a method for manufacturing the valve-integrating container.
- In general, a liquid such as chemicals used for semiconductor manufacturing apparatuses and general chemicals is charged into a storage container at a production plant, and is then shipped with a cap attached to an opening portion formed on the storage container. It is known that a special cap with piping fixed thereto is attached to the opening portion for withdrawing the liquid stored in such a storage container (for example, refer to PTL 1).
- According to
PTL 1, the liquid stored in the storage container can be drawn up through the piping or withdrawn by supplying a gas for pumping out the liquid into the storage container. -
Japanese Unexamined Patent Application, Publication No. Sho 63-232127 - When using the storage container disclosed in
PTL 1, the storage container filled with a liquid at a production plant is transported with a cap attached thereto and the cap is removed to be replaced with the special cap at a site of use. Because the piping is installed to the special cap as it is, it requires a process of coupling itself to piping toward which the liquid is supplied at the site. For example, the process may involve attaching a plug to the piping installed to the special cap and coupling the plug to a socket attached to the piping toward which the liquid is supplied. - Thus, the technique disclosed in
PTL 1 requires a process of removing the cap of the storage container to replace the cap with the special cap and a process of attaching the plug to the piping installed to the special cap before the liquid can be withdrawn. - The present invention has been made under such a circumference and an object of the present invention is to provide a downsized valve-integrating container which enables a liquid inside a container to be withdrawn easily and safely without leaving any residue, a liquid withdrawing device equipped with the same, and a method for manufacturing the valve-integrating container.
- In order to solve the foregoing problem, the following solutions have been adopted in the present invention.
- A valve-integrating container according to an aspect of the present invention includes: a container body formed in a cylindrical shape extending in an axial direction, the container body having an enlarged-diameter portion, a reduced-diameter portion provided below the enlarged-diameter portion, and a connecting portion connecting the enlarged-diameter portion and the reduced-diameter portion; and a valve mechanism mounted to the reduced-diameter portion of the container body and switching whether a liquid stored in the container body is allowed to flow out through a first opening portion provided at a lower end of the reduced-diameter portion, the valve mechanism including: a spring disposed along the axial direction; a spring supporting part supporting one end portion of the spring; and a valve plug disposed between the spring supporting part and the first opening portion and receiving a biasing force toward the first opening portion from another end portion of the spring, the spring supporting part including: a liquid flow channel formed in a cylindrical shape extending along the axial direction; a lower end portion mounted to an inner circumferential surface of the reduced-diameter portion; an upper end portion projecting toward the enlarged-diameter portion; and a first guide groove formed on an outer circumferential surface thereof for guiding a liquid stored in the connecting portion downwardly in the axial direction, and the valve plug has a second guide groove formed on an outer circumferential surface thereof for guiding the liquid guided by the first guide groove, downwardly in the axial direction to the first opening portion.
- According to a valve-integrating container in accordance with an aspect of the present invention, the valve mechanism switching whether the liquid stored in the container body is allowed to flow out is mounted to the reduced-diameter portion provided at a lower portion of the container body. The valve plug of the valve mechanism receives a biasing force from the spring in a direction toward the first opening portion provided at the lower end of the reduced-diameter portion. The spring supporting part supporting the one end portion of the spring is mounted to the inner circumferential surface of the reduced-diameter portion at its lower end portion and projects toward the enlarged-diameter portion of the container body at its upper end portion. This shortens the length of the valve-integrating container in the axial direction to downsize it as compared with the case where the spring supporting part does not project toward the enlarged-diameter portion of the container body.
- If the level of the liquid stored in the container body is higher than an upper end of the spring supporting part projecting toward the enlarged-diameter portion, the liquid is led to the first opening portion by the liquid flow channel formed in the spring supporting part. Meanwhile, if the level of the liquid stored in the container body is lower than the upper end of the spring supporting part projecting toward the enlarged-diameter portion, the liquid does not flow through the liquid flow channel formed in the spring supporting part.
- Also, according to the valve-integrating container of this aspect, if the level of the liquid is lower than the upper end of the spring supporting part, the liquid stored in the connecting portion connecting the enlarged-diameter portion and the reduced-diameter portion of the container body is guided downwardly in the axial direction by the first guide groove formed on the outer circumferential surface of the spring supporting part. The liquid guided by the first guide groove will be led to the first opening portion by the second guide groove formed on the outer circumferential surface of the valve plug.
- Also, according to the valve-integrating container of this aspect, by mounting the valve-integrating container to, for example, a server device having a projection portion moving the valve plug away from the first opening portion, the worker can easily and safely withdraw the liquid inside the container without touching the liquid.
- Thus, according to the valve-integrating container of this aspect, there can be provided a downsized valve-integrating container which enables a liquid inside a container to be withdrawn easily and safely without leaving any residue.
- A valve-integrating container according to an aspect of the present invention may be configured to include a filter part attached to an upper portion of the container body, the filter part letting a gas flow into and out of the container body while preventing a liquid from flowing into and out of the container body.
- According to the configuration, because the filter part lets a gas flow into and out of the container body, a gas can be led into the container body from the outside for volume displacement of a liquid having flowed out through the first opening portion. In addition, a gas generated inside the container body, for example, is discharged to the outside, thereby avoiding high pressure inside the container body. Further, the filter part prevents a liquid or foreign matter having a particle diameter larger than that of a liquid from entering into the container body from outside while preventing a liquid from flowing out of the container body.
- In the valve-integrating container of this configuration, the container body may include a cylindrical second opening portion provided above the enlarged-diameter portion, the second opening portion extending in the axial direction and carrying external threads on an outer circumferential surface thereof, and a cap carrying on an inner circumferential surface thereof internal threads to be fastened to the external threads formed on the second opening portion, and the filter part may be attached to the cap.
- With this configuration, a liquid can be easily supplied into the container body through the second opening portion, with the cap removed from the container body. Also, an easy operation of attaching the cap to the container body can make the filter part attached to the second opening portion.
- In a valve-integrating container according to an aspect of the present invention, the enlarged-diameter portion may include a first enlarged-diameter portion integrally molded with the reduced-diameter portion and the connecting portion and a second enlarged-diameter portion provided above the first enlarged-diameter portion, and an upper end of the first enlarged-diameter portion and a lower end of the second enlarged-diameter portion may be joined together by heat welding.
- With this configuration, the container body can be formed by joining by heat welding a member prepared by integrally molding the reduced-diameter portion, the connecting portion, and the first enlarged-diameter portion, and a member forming the second enlarged-diameter portion. Accordingly, the container body can be manufactured easily as compared with integrally molding all of the reduced-diameter portion, the connecting portion, and the enlarged-diameter portion as a single member.
- A liquid withdrawing device according to an aspect of the present invention includes any of the above valve-integrating containers, and a server device removably receiving the valve-integrating container and withdrawing the liquid stored in the valve-integrating container, the server device including: a recess into which the reduced-diameter portion of the container body is inserted; a projection portion contacting a tip portion of the valve plug when the reduced-diameter portion is inserted in the recess, to move the valve plug away from the first opening portion; and a locking mechanism establishing a locked state where the reduced-diameter portion is fixed to the recess in response to insertion of the reduced-diameter portion into the recess and establishing an unlocked state where the reduced-diameter portion is removable from the recess in response to an operator's unlocking operation.
- According to the liquid withdrawing device of this aspect, the reduced-diameter portion of the container body is locked as it is fixed in the recess in response to insertion of any of the above valve-integrating container into the recess of the server device. Also, the tip portion of the valve plug of the valve-integrating container contacts the projection portion of the server device to be moved away from the first opening portion, and thus the liquid stored in the valve-integrating container can be withdrawn through the first opening portion.
- With this configuration, there can be provided a liquid withdrawing device equipped with a downsized valve-integrating container which enables a liquid inside the container to be withdrawn easily and safely without leaving any residue.
- A liquid withdrawing device according to an aspect of the present invention may be configured such that the recess of the server device has on an inner circumferential surface thereof groove portions extending in the axial direction at a plurality of points around the axis, the reduced-diameter portion of the valve-integrating container has on an outer circumferential surface thereof projection portions extending in the axial direction at a plurality of points around the axis, a plurality of positions of the groove portions around the axis correspond to a plurality of positions of the projection portions around the axis, and the valve-integrating container is mounted to the server device by inserting the projection portions at the plurality of points into the groove portions at the plurality of points.
- According to the configuration, if the plurality of positions of the groove portions around the axis do not correspond to the plurality of positions of the projection portions around the axis, the projection portions at the plurality of points cannot be inserted into the groove portions at the plurality of points, thereby preventing the valve-integrating container from being mounted to the server device. Therefore, in situations in which there are a plurality of valve-integrating containers each containing a different liquid and their respective server devices, misconnection between the valve-integrating containers and the server devices can be prevented.
- A method for manufacturing a valve-integrating container according to an aspect of the present invention includes the steps of: forming a lower end side container formed in a cylindrical shape extending in an axial direction and including a first enlarged-diameter portion, a reduced-diameter portion provided below the first enlarged-diameter portion, and a connecting portion connecting the first enlarged-diameter portion and the reduced-diameter portion; forming an upper end side container having a second enlarged-diameter portion at a lower portion thereof by cutting off a base portion from a container having a second opening portion at an upper end side and a base at a lower end side; joining by heat welding an upper end of the first enlarged-diameter portion of the lower end side container to a lower end of the second enlarged-diameter portion of the upper end side container; mounting a valve mechanism switching whether a liquid is allowed to flow out through a first opening portion provided at a lower end of the reduced-diameter portion, to the reduced-diameter portion of the lower end side container by inserting the valve mechanism through the second opening portion; and fastening a cap carrying internal threads on an inner circumferential surface thereof to external threads provided on an outer circumferential surface of the second opening portion.
- According to the method for manufacturing a valve-integrating container of this aspect of the present invention, the base portion is cut off from a container having the second opening portion at the upper end side and the base at the lower end side, thereby forming the upper end side container having the second enlarged-diameter portion at its lower portion. Thus, the upper end side container can be formed from a container of a commonly used shape.
- Also, the upper end of the first enlarged-diameter portion of the lower end side container and the lower end of the second enlarged-diameter portion of the upper end side container are joined together by heat welding, and after that the valve mechanism is inserted through the second opening portion of the upper end side container to be mounted to the reduced-diameter portion of the lower end side container. This prevents the valve mechanism from contacting the heat source when joining the upper end side container to the lower end side container by heat welding. In addition, the valve mechanism is mounted to the lower end side container, the liquid is poured into the container body, and then the cap is fastened, and thus this seals the liquid in the valve-integrating container.
- In addition, according to a method for manufacturing a valve-integrating container in accordance with an aspect of the present invention, there is provided a downsized valve-integrating container which enables a liquid inside a container to be withdrawn easily and safely without leaving any residue.
- According to the present invention, there can be provided a downsized valve-integrating container which enables a liquid inside a container to be withdrawn easily and safely without leaving any residue, a liquid withdrawing device equipped with the same, and a method for manufacturing the valve-integrating container.
-
- {
Fig. 1 }
Fig. 1 is a vertical cross-sectional view showing a liquid withdrawing device of a first embodiment. - {
Fig. 2 }
Fig. 2 is a vertical cross-sectional view showing a valve-integrating container of the first embodiment. - {
Fig. 3 }
Fig. 3 is an exploded assembly view of the valve-integrating container shown inFig. 2 . - {
Fig. 4 }
Fig. 4 is an exploded assembly view of a valve mechanism shown inFig. 3 . - {
Fig. 5 }
Fig. 5 is a plan view of a spring supporting part shown inFig. 4 as seen from above in an axial direction. - {
Fig. 6 }
Fig. 6 is a plan view of a valve plug shown inFig. 4 as seen from below in the axial direction. - {
Fig. 7 }
Fig. 7 is an exploded assembly view of a cap shown inFig. 2 . - {
Fig. 8 }
Fig. 8 is a plan view of the cap shown inFig. 2 as seen from above in the axial direction. - {
Fig. 9 }
Fig. 9 is a vertical cross-sectional view showing a server device of the first embodiment showing the server device in a locked state. - {
Fig. 10 }
Fig. 10 is a vertical cross-sectional view showing the server device of the first embodiment showing the server device in an unlocked state. - {
Fig. 11 }
Fig. 11 shows a step of forming an upper end side container of the valve-integrating container shown inFig. 11 . - {
Fig. 12 }
Fig. 12 is a vertical cross-sectional view showing the upper end side container and a lower end side container of the valve-integrating container shown inFig. 1 before the upper and lower end side containers are joined together. - {
Fig. 13 }
Fig. 13 is a vertical cross-sectional view showing the upper end side container and the lower end side container of the valve-integrating container shown inFig. 1 after the upper and lower end side containers are joined together. - {
Fig. 14 }
Fig. 14 is a vertical cross-sectional view showing a valve-integrating container in a second embodiment. - {
Fig. 15 }
Fig. 15 is a vertical cross-sectional view showing an example of a socket attached to an upper end of the valve-integrating container shown inFig. 14 . - {
Fig. 16 }
Fig. 16 is a vertical cross-sectional view showing another example of the socket attached to the upper end of the valve-integrating container shown inFig. 14 . - {
Fig. 17 }
Fig. 17 is a plan view of the valve-integrating container shown inFig. 14 as seen from below in the axial direction. - {
Fig. 18 }
Fig. 18 is a plan view of a server device of the second embodiment as seen from above in the axial direction. - {
Fig. 19 }
Fig. 19 is a vertical cross-sectional view showing a cap in a third embodiment. - {
Fig. 20 }
Fig. 20 is an exploded assembly view of a filter part in the third embodiment. - Hereinafter, a liquid withdrawing
device 300 according to an embodiment of the present invention will be described with reference to drawings. - As shown in
Fig. 1 , the liquid withdrawingdevice 300 of the embodiment includes a valve-integratingcontainer 100 and aserver device 200. In the liquid withdrawingdevice 300 of the embodiment, the valve-integratingcontainer 100 is mounted to theserver device 200, and then a liquid stored in the valve-integratingcontainer 100 is withdrawn to be supplied to the outside through theserver device 200. The valve-integratingcontainer 100 can store various kinds of liquids, such as chemicals used for semiconductor manufacturing apparatuses and general chemicals. - First, the valve-integrating
container 100 of the embodiment will be described. - As shown in
Fig. 1 , the valve-integratingcontainer 100 includes acontainer body 10, avalve mechanism 20, acap 30, afilter part 40, and anidentification ring 50. - As shown in
Fig. 2 , thecontainer body 10 includes an enlarged-diameter portion 11, a reduced-diameter portion 12, a connectingportion 13, and an opening portion 14 (second opening portion), and stores a liquid inside. Thecontainer body 10 is formed in a cylindrical shape extending along an axis X. The reduced-diameter portion 12 is provided below the enlarged-diameter portion 11 and connected to the enlarged-diameter portion 11 by the connectingportion 13. - As shown in
Fig. 2 , the enlarged-diameter portion 11 includes a first enlarged-diameter portion 11a and a second enlarged-diameter portion 11b positioned upper than the first enlarged-diameter portion 11a along the axis X. The first enlarged-diameter portion 11a is integrally molded with the reduced-diameter portion 12 and the connectingportion 13 from a resin material (e.g., fluorine resin material). The first enlarged-diameter portion 11a and the second enlarged-diameter portion 11b are joined together by heat welding. - As shown in
Fig. 2 , the openingportion 14 is provided above the enlarged-diameter portion 11 and formed in a cylindrical shape extending along the axis X, and carriesexternal threads 14a on its outer circumferential surface. - The
valve mechanism 20 switches whether the liquid stored in thecontainer body 10 is allowed to flow out through anopening portion 12a (first opening portion) provided at a lower end of the reduced-diameter portion 12 of thecontainer body 10. As shown inFig. 2 , thevalve mechanism 20 is mounted on an inner circumferential surface of the reduced-diameter portion 12 of thecontainer body 10. - As shown in
Figs. 2 and3 , thevalve mechanism 20 includes aspring 21, aspring supporting part 22, and avalve plug 23. Each part constituting thevalve mechanism 20 is formed from a resin material (e.g., fluorine resin material). Thespring 21 is an elastic member formed in a bellows shape which is extendable along the axis X. Thespring supporting part 22 supports oneend portion 21a of thespring 21 provided along the axis X. Thevalve plug 23 is positioned between thespring supporting part 22 and theopening portion 12a and receives a biasing force from theother end portion 21b of thespring 21 in a direction toward theopening portion 12a. - The
spring supporting part 22 of thevalve mechanism 20 has aliquid flow channel 22a formed in a cylindrical shape extending along the axis X. Thespring supporting part 22 carries external threads on an outer circumferential surface of itslower end portion 22b. Thespring supporting part 22 is mounted to the reduced-diameter portion 12 as the external threads on the outer circumferential surface of thelower end portion 22b is fastened tointernal threads 12b formed on the inner circumferential surface of the reduced-diameter portion 12 (refer toFig. 3 ). - As shown in
Fig. 2 , anupper end portion 22c of thespring supporting part 22 is positioned to project toward the enlarged-diameter portion 11. As shown inFigs. 2 and3 , thespring supporting part 22 has on its outer circumferential surface aguide groove 22d (first guide groove) for guiding the liquid stored in the connectingportion 13 of thecontainer body 10 downwardly along the axis X. - The valve plug 23 of the
valve mechanism 20 receives the biasing force from theother end portion 21b of thespring 21 in the direction toward theopening portion 12a to contact theopening portion 12a. As shown inFig. 2 , when atip portion 23b of thevalve plug 23 is in contact with theopening portion 12a of thecontainer body 10, the liquid stored inside thecontainer body 10 cannot be withdrawn through theopening portion 12a. On the other hand, when thetip portion 23b of thevalve plug 23 is away from theopening portion 12a of thecontainer body 10 as shown inFig. 1 , the liquid stored inside thecontainer body 10 can be withdrawn through theopening portion 12a. - In a state shown in
Fig. 2 , the position of thetip portion 23b of thevalve plug 23 on the axis X is the same with or higher than a lower end surface of theopening portion 12a. In the state shown inFig. 2 , thetip portion 23b of thevalve plug 23 does not project downwardly through theopening portion 12a along the axis X, and accommodated in the reduced-diameter portion 12. Accordingly, thetip portion 23b of thevalve plug 23 does not move away from theopening portion 12a in the state shown inFig. 2 , even when a plate-like member contacts theopening portion 12a or theopening portion 12a contacts a plane. Therefore, the liquid stored inside thecontainer body 10 will not be withdrawn through theopening portion 12a even when a plate-like member contacts theopening portion 12a or theopening portion 12a contacts a plane. - As shown in
Figs. 2 and3 , thevalve plug 23 has on its outer circumferential surface aguide groove 23a (second guide groove) for guiding the liquid guided from the connectingportion 13 of thecontainer body 10 by theguide groove 22d, downwardly along the axis X to theopening portion 12a. - As shown in the exploded assembly view of
Fig. 4 , thevalve mechanism 20 is configured such that thespring 21 is accommodated in thespring supporting part 22 at the oneend portion 21a and accommodated in thevalve plug 23 at theother end portion 21b. Thespring supporting part 22 and thevalve plug 23 respectively have on their outer circumferential surfaces theguide groove 22d and theguide groove 23a each extending along the axis X. Here,Fig. 4 is a side view of thevalve mechanism 20 shown inFig. 2 as seen from the right. - As shown in
Fig. 5 , theguide groove 22d formed on the outer circumferential surface of thespring supporting part 22 is provided at three points around the axis X such that they are evenly spaced from each other. The threeguide grooves 22d form flow channels through which the liquid flows between the inner circumferential surface of the reduced-diameter portion 12 and thespring supporting part 22 to lead the liquid stored in the connectingportion 13 downwardly. - As shown in
Fig. 6 , theguide groove 23a formed on the outer circumferential surface of thevalve plug 23 is provided at four points around the axis X such that they are evenly spaced from each other. The fourguide grooves 23a form flow channels through which the liquid flows between the inner circumferential surface of the reduced-diameter portion 12 and thevalve plug 23. - As shown in
Figs. 1 and2 , aclearance 22e is provided between an end of thespring supporting part 22 and the inner circumferential surface of the reduced-diameter portion 12, with thespring supporting part 22 fastened to the inner circumferential surface of the reduced-diameter portion 12. The liquid led by theguide grooves 22d from the connectingportion 13 flows through theclearance 22e into theguide grooves 23a and will be led downwardly toward theopening portion 12a. - If a level of the liquid stored in the
container body 10 is higher than S1 which corresponds to an upper end of thevalve mechanism 20 as shown inFig. 1 (e.g., the level S0 shown inFig. 1 ), the liquid stored in thecontainer body 10 is led through theliquid flow channel 22a of thespring supporting part 22 to theopening portion 12a. Meanwhile, if the level of the liquid stored in thecontainer body 10 is lower than S1, the liquid is not led through theliquid flow channel 22a to theopening portion 12a. - In the valve-integrating
container 100 of the embodiment, the liquid stored in thecontainer body 10 is led through theguide grooves 22d and theguide grooves 23a to theopening portion 12a whether the level of the liquid stored in thecontainer body 10 is higher or lower than S1. Accordingly, even when the level of the liquid declines below S1 and the liquid cannot be led through theliquid flow channel 22a of thespring supporting part 22 to theopening portion 12a, the liquid can be withdrawn to the outside without leaving any residue in the connectingportion 13. Meanwhile, when the level of the liquid is higher than S1 (e.g., the level S0 shown inFig. 1 ), the liquid stored in thecontainer body 10 is led to theopening portion 12a through theliquid flow channel 22a, as well as through theguide grooves 22d and theguide grooves 23a. - Although the liquid stored in the
container body 10 is led to theopening portion 12a through theguide grooves 22d and theguide grooves 23a even if theliquid flow channel 22a is not provided and theupper end portion 22c of thespring supporting part 22 is blocked, it is advantageous to provide theliquid flow channel 22a. If theupper end portion 22c of thespring supporting part 22 is blocked, air bubbles lodge inside thespring supporting part 22. In contrast, air bubbles led into thespring supporting part 22 will be led to thecontainer body 10 by providing theliquid flow channel 22a in thespring supporting part 22. - The
cap 30 is attached to the openingportion 14 positioned at the upper portion of thecontainer body 10. Thecap 30 is attached to thecontainer body 10 asinternal threads 30a formed on an inner circumferential surface of thecap 30 is fastened to theexternal threads 14a formed on the outer circumferential surface of the openingportion 14. Thefilter part 40 is attached to the center of an upper end surface of thecap 30. - The
filter part 40 lets a gas flow into and out of thecontainer body 10, while preventing a liquid from flowing into and out of thecontainer body 10. As shown inFigs. 1 to 3 , thefilter part 40 is attached to the central portion of an upper end of thecap 30 attached to the upper portion of thecontainer body 10. - As shown in the exploded assembly view of
Fig. 7 , thefilter part 40 includes amembrane filter 40a,coarse filters 40b, and alid portion 40c. Themembrane filter 40a and thecoarse filters 40b are thin films each having a circular shape in a plan view, and they are arranged such that themembrane filter 40a is sandwiched between the twocoarse filters 40b. Themembrane filter 40a and thecoarse filters 40b are positioned as they are sandwiched between the central portion of the upper end surface of thecap 30 and thelid portion 40c. - The
lid portion 40c is joined to thecap 30 by ultrasonic welding as it is attached to thecap 30. Themembrane filter 40a and thecoarse filters 40b are placed where thelid portion 40c and thecap 30 are ultrasonic-welded together. As a result, a resin material melted by the ultrasonic welding of thelid portion 40c and thecap 30 fixes themembrane filter 40a and thecoarse filters 40b. - The
membrane filter 40a is a porous thin film formed from a fluorine resin, for example. By using amembrane filter 40a with a pore size of, for example, about 0.22 µm, foreign matter is prevented from mixing into thecontainer body 10 from outside. Also, themembrane filter 40a, whose pore size is very small, has a property of preventing a liquid having a surface tension of a certain level or more from passing therethrough. In the embodiment, the pore of themembrane filter 40a is sized to prevent the liquid in thecontainer body 10 from flowing out. - Meanwhile, the
membrane filter 40a, which is porous, lets gas flow into and out of thecontainer body 10. Thecoarse filters 40b are provided at both sides of themembrane filter 40a for preventing foreign matter from entering into thecontainer body 10 due to deformation of themembrane filter 40a which might increase some pores in size. - The
cap 30 has avent 30b formed on its upper end surface. Also, thelid portion 40c has avent 40d at two points thereof. As shown in the plan view ofFig. 8 , a part of thevent 30b and parts of thevents 40d overlap with each other on a plane orthogonal to the axis X. Accordingly, a gas can flow into and out of thecontainer body 10. - The
identification ring 50 is an annular member attached to the joint obtained by heat welding of the first enlarged-diameter portion 11a and the second enlarged-diameter portion 11b. Theidentification ring 50 has on its inner circumferential surface an endless groove extending around the axis X. Theidentification ring 50 is attached to thecontainer body 10 as the groove formed on the inner circumferential surface engages the bead portion formed by heat welding of the first enlarged-diameter portion 11a and the second enlarged-diameter portion 11b. - Next, the
server device 200 will be described. - The
server device 200 removably receives the valve-integratingcontainer 100 and withdraws the liquid stored in the valve-integratingcontainer 100. - As shown in
Fig. 1 , theserver device 200 includes afirst base member 210, asecond base member 220, athird base member 230, avalve pressing member 240, a withdrawingmember 250, apiping holding member 260, withdrawingpiping 270, alocking mechanism 280, and afastening bolt 290. - The
first base member 210 and thethird base member 230 each have a square outline when viewed from above along the axis X. Thefirst base member 210 has fastening holes carrying internal threads on its inner circumferential surface, at the four corners in a plan view. Thethird base member 230 has through holes at the four corners in a plan view such that the through holes correspond to the fastening holes of thefirst base member 210. As shown inFig. 1 , thefirst base member 210 and thethird base member 230 are coupled to each other by inserting afastening bolt 290 carrying external threads on its outer circumferential surface into thethird base member 230 from below to fasten thefastening bolt 290 to the fastening hole of thefirst base member 210. - The
second base member 220 is generally formed in a cylindrical shape extending along the axis X, and is fixed as it is sandwiched between thefirst base member 210 and thethird base member 230. Thesecond base member 220 carries external threads on its outer circumferential surface close to a lower end thereof, and the external threads is fastened to internal threads formed on an inner circumferential surface ofthird base member 230 around the axis X. - As shown in
Fig. 9 , an inner circumferential surface of thefirst base member 210 and an inner circumferential surface of thesecond base member 220 together form arecess 201, into which the reduced-diameter portion 12 of thecontainer body 10 is inserted. - An endless groove portion extending around the axis X is formed on the inner circumferential surface of the
second base member 220 forming therecess 201, and anO ring 220b is attached to the groove portion. As shown inFig. 1 , when the reduced-diameter portion 12 of thecontainer body 10 is inserted in therecess 201, theO ring 220b contacts an outer circumferential surface of the reduced-diameter portion 12 to form a seal area along the entire circumference around the axis X. - As shown in
Fig. 1 , thevalve pressing member 240, the withdrawingmember 250, thepiping holding member 260, and the withdrawingpiping 270 are placed one under another in this order at the central position of thesecond base member 220 along the axis X. - The
piping holding member 260 is generally formed in a cylindrical shape extending along the axis X and carries external threads on its outer circumferential surface. Thepiping holding member 260 is fixed to thesecond base member 220 as the external threads formed on the outer circumferential surface is fastened to internal threads formed on the inner circumferential surface of thesecond base member 220 around the axis X. - The withdrawing
member 250 is inserted from above along the axis X into thepiping holding member 260 with thepiping holding member 260 fixed to thethird base member 230. The withdrawingmember 250 has a liquid flow channel extending along the axis X at the center. - As shown in
Fig. 1 , the withdrawingpiping 270 is fixed as sandwiched between the piping holdingmember 260 and the withdrawingmember 250. As a result, the liquid led downwardly through the liquid flow channel formed in the withdrawingmember 250 flows into the withdrawingpiping 270. After the withdrawingmember 250 is inserted into thesecond base member 220, thevalve pressing member 240 is inserted over the withdrawingmember 250. Thevalve pressing member 240 is fixed to thesecond base member 220 as it is press-fitted into thesecond base member 220. - The
valve pressing member 240 has aprojection portion 240a to press thetip portion 23b of thevalve plug 23 upwardly along the axis X. When the reduced-diameter portion 12 is inserted in therecess 201, theprojection portion 240a contacts thetip portion 23b of thevalve plug 23 to move thevalve plug 23 away from theopening portion 12a. As shown inFigs. 2 and3 , a recessed portion which is circular when viewed in a plan view and into which theprojection portion 240a of thevalve pressing member 240 is inserted is formed at the central position of thetip portion 23b of thevalve plug 23 on the axis X. The recessed portion guides theprojection portion 240a such that theprojection portion 240a reliably contacts thetip portion 23b and prevents, even if theprojection portion 240a deviates from the axis X, a force acting to deform theprojection portion 240a. - The
valve pressing member 240 hasliquid flow channels 240b penetrating therethrough in the direction of the axis X, at a plurality of points around the axis X. The liquid flowing out of theopening portion 12a will be led through theliquid flow channels 240b to the withdrawingmember 250, with thevalve plug 23 away from theopening portion 12a. - Next, the
locking mechanism 280 of theserver device 200 will be described usingFigs. 9 and10 . - The
locking mechanism 280 establishes a locked state where the reduced-diameter portion 12 of thecontainer body 10 is fixed to therecess 201 in response to insertion of the reduced-diameter portion 12 into therecess 201 and establishes an unlocked state where the reduced-diameter portion 12 is removable from therecess 201 in response to an operator's unlocking operation. - The
locking mechanism 280 includes an unlockingbutton 281, a pressingmember 282, a lockingmember 283, and aspring 284. - The unlocking
button 281 receives the unlocking operation by the operator and connected to thepressing member 282. The unlockingbutton 281 and thepressing member 282 move from the position shown inFig. 9 to the position shown inFig. 10 when the operator performs the unlocking operation of pressing the unlockingbutton 281. - An
identification ring 281a attached to the unlockingbutton 281 have the same color or pattern as that of theidentification ring 50 attached to thecontainer body 10, for example. The worker can recognize that a pair of a valve-integratingcontainer 100 and aserver device 200 with the same color or pattern is associated with each other. This prevents misconnection of the valve-integratingcontainer 100 and theserver device 200. - The locking
member 283 is generally formed in a ring shape and is placed around the axis X. The lockingmember 283 has on its upper end surface an engaginggroove 283a extending in a radial direction orthogonal to the axis X. As shown inFigs. 9 and10 , the engaginggroove 283a engages anengaging pin 220a mounted to thesecond base member 220. As a result, the moving direction of the lockingmember 283 is restricted such that the lockingmember 283 is movable only in a right-left direction inFigs. 9 and10 . - As shown in
Figs. 9 and10 , thespring 284 exerts a biasing force on the lockingmember 283 in a direction in which the lockingmember 283 is pressed against the pressingmember 282. When the operator is not holding down the unlockingbutton 281, the lockingmember 283 is pressing thepressing member 282 leftward as inFigs. 9 and10 into the state shown inFig. 9. Fig. 9 shows the same state as that inFig. 1 , where the lockingmember 283 projects into therecess 201. In this state, the lockingmember 283 projecting into therecess 201 engages a lockinggroove 12c (refer toFig. 2 ) formed on the outer circumferential surface of the reduced-diameter portion 12. The locked state is established where the reduced-diameter portion 12 is fixed to therecess 201 as the lockingmember 283 engages the lockinggroove 12c. - When the operator is holding down the unlocking
button 281, the pressingmember 282 is pressing the lockingmember 283 rightward as inFigs. 9 and10 into the state shown inFig. 10 . In the state shown inFig. 10 , the lockingmember 283 does not project into therecess 201. In this state, the lockingmember 283 does not engage the lockinggroove 12c (refer toFig. 2 ) formed on the outer circumferential surface of the reduced-diameter portion 12. Because the lockingmember 283 is not engaged with the lockinggroove 12c, the unlocked state is established where the reduced-diameter portion 12 is removable from therecess 201. - Next, a method for manufacturing the valve-integrating
container 100 of the embodiment will be described. - The
container body 10 of the valve-integratingcontainer 100 of the embodiment is formed by heat welding a lower end side container including the first enlarged-diameter portion 11a, the reduced-diameter portion 12, and the connectingportion 13 and an upper end side container including the second enlarged-diameter portion 11b and the openingportion 14. - In the method for manufacturing the valve-integrating
container 100 of the embodiment, each of the upper end side container and the lower end side container is formed first. As shown inFig. 11 , the upper end side container is formed by cutting off abase portion 10a from a container having a base at its lower end. As shown inFig. 11 , thecontainer body 10 with thebase portion 10a cut off includes the second enlarged-diameter portion 11b and the openingportion 14. - Also, in the method for manufacturing the valve-integrating
container 100 of the embodiment, the lower end side container including the first enlarged-diameter portion 11a, the reduced-diameter portion 12, and the connectingportion 13 is formed by injection molding a resin material, for example. - In the method for manufacturing the valve-integrating
container 100 of the embodiment, after the upper end side container and the lower end side container are formed, the both containers are positioned as shown inFig. 12 . InFig. 12 , a lower end surface of the upper end side container and an upper end surface of the lower end side container are spaced from each other, and aheater plate 400 is placed the clearance therebetween. Theheater plate 400 is heated by a heat source (not shown). The lower end surface of the upper end side container and the upper end surface of the lower end side container become melted at their end surfaces close to theheater plate 400 due to the radiant heat from theheater plate 400. - After the resin materials of the lower end surface of the upper end side container and the upper end surface of the lower end side container are melted in the state shown in
Fig. 12 , theheater plate 400 is removed from the clearance between the lower end surface of the upper end side container and the lower end side container. Then, the lower end surface of the upper end side container and the upper end surface of the lower end side container whose resin materials are melted are brought close to each other along the axis X and into contact with each other. As shown inFig. 13 , after the lower end surface of the upper end side container and the upper end surface of the lower end side container are left contacted to each other for a period of time, the melted resin materials of the lower end surface of the upper end side container and the upper end surface of the lower end side container solidify to be joined to each other. Thecontainer body 10 is formed in this way. - After forming the
container body 10 shown inFig. 13 , thevalve mechanism 20 is inserted into thecontainer body 10 from above the openingportion 14, and the external threads formed on thelower end portion 22b of thevalve mechanism 20 are fastened to the internal threads formed on the inner circumferential surface of the reduced-diameter portion 12. The worker inserts a jig from the openingportion 14 to rotate thevalve mechanism 20 about the axis X, thereby mounting thevalve mechanism 20 to the reduced-diameter portion 12. - After mounting the
valve mechanism 20 to the reduced-diameter portion 12, the worker fastens thecap 30 carrying theinternal threads 30a on its inner circumferential surface toexternal threads 14a provided on the outer circumferential surface of the openingportion 14. - The valve-integrating
container 100 shown inFig. 2 is manufactured by the above series of work. - The operations and effects of the embodiment as described above will be described.
- According to the valve-integrating
container 100 of the embodiment, thevalve mechanism 20 switching whether the liquid stored in thecontainer body 10 is allowed to flow out is mounted to the reduced-diameter portion 12 provided at a lower portion of thecontainer body 10. Thespring 21 exerts a biasing force on thevalve plug 23 of thevalve mechanism 20 in a direction toward theopening portion 12a provided at the lower end of the reduced-diameter portion 12. Thespring supporting part 22 supporting the oneend portion 21a of thespring 21 is mounted at thelower end portion 22b to theinternal threads 12b on the inner circumferential surface of the reduced-diameter portion 12 and projects at theupper end portion 22c toward the enlarged-diameter portion 11 of thecontainer body 10. This shortens the length of the valve-integratingcontainer 100 along the axis X to downsize it as compared with the case where thespring supporting part 22 does not project toward the enlarged-diameter portion 11 of thecontainer body 10. - If the level of the liquid stored in the
container body 10 is higher than the upper end of thespring supporting part 22 projecting toward the enlarged-diameter portion 11, the liquid is led to theopening portion 12a by theliquid flow channel 22a formed in thespring supporting part 22. Meanwhile, if the level of the liquid stored in thecontainer body 10 is lower than the upper end of thespring supporting part 22 projecting toward the enlarged-diameter portion 11, the liquid does not flow through theliquid flow channel 22a formed in thespring supporting part 22. - According to the valve-integrating
container 100 of the embodiment, the liquid stored at the connectingportion 13 connecting the enlarged-diameter portion 11 and the reduced-diameter portion 12 of thecontainer body 10 is guided downwardly in the direction of the axis X by theguide grooves 22d formed on the outer circumferential surface of thespring supporting part 22 whether the level of the liquid is higher or lower than the upper end of thespring supporting part 22. Also, the liquid guided by theguide grooves 22d will be led by theguide grooves 23a formed on the outer circumferential surface of thevalve plug 23 to theopening portion 12a. - According to the valve-integrating
container 100 of the embodiment, by mounting the valve-integratingcontainer 100 to, for example, theserver device 200 having theprojection portion 240a moving thevalve plug 23 away from theopening portion 12a, the worker can easily and safely withdraw the liquid inside thecontainer body 10 without touching the liquid. - Thus, according to the valve-integrating
container 100 of the embodiment, there can be provided a downsized valve-integratingcontainer 100 which enables a liquid inside a container to be withdrawn easily and safely without leaving any residue. - The valve-integrating
container 100 of the embodiment includes thefilter part 40, which is attached to the upper portion of thecontainer body 10 and lets a gas flow into and out of thecontainer body 10, while preventing a liquid from flowing into and out of thecontainer body 10. - According to the embodiment, because the
filter part 40 lets a gas flow into and out of thecontainer body 10, a gas can be led into thecontainer body 10 from the outside for volume displacement of a liquid having flowed out through theopening portion 12a. In addition, a gas generating inside thecontainer body 10, for example, is discharged to the outside, thereby avoiding high pressure inside thecontainer body 10. Further, thefilter part 40 prevents a liquid or foreign matter having a particle diameter larger than that of a liquid from entering into thecontainer body 10 from outside while preventing a liquid from flowing out of thecontainer body 10. - In the embodiment, the
container body 10 has thecylindrical opening portion 14 which is provided above the enlarged-diameter portion 11, extends along the axis X, and carries theexternal threads 14a on its outer circumferential surface. Thecontainer body 10 includes thecap 30 carrying on its inner circumferential surface theinternal threads 30a to be fastened to theexternal threads 14a formed on the openingportion 14. Thefilter part 40 is attached to thecap 30. - With this configuration, a liquid can be easily supplied into the
container body 10 through the openingportion 14 with thecap 30 removed from thecontainer body 10. Also, an easy operation of attaching thecap 30 to thecontainer body 10 can make thefilter part 40 attached to the openingportion 14. - In the embodiment, the enlarged-
diameter portion 11 includes the first enlarged-diameter portion 11a integrally molded with the reduced-diameter portion 12 and the connectingportion 13 and the second enlarged-diameter portion 11b provided above the first enlarged-diameter portion 11a. The upper end of the first enlarged-diameter portion 11a is joined to the lower end of the second enlarged-diameter portion 11b by heat welding. - With this configuration, the
container body 10 can be formed by joining by heat welding a member prepared by integrally molding the reduced-diameter portion 12, the connectingportion 13, and the first enlarged-diameter portion 11a, and a member forming the second enlarged-diameter portion 11b. Accordingly, thecontainer body 10 can be manufactured easily compared with integrally molding all of the reduced-diameter portion 12, the connectingportion 13, and the enlarged-diameter portion 11 as a single member. - According to the liquid withdrawing
device 300 of the embodiment, the reduced-diameter portion 12 of thecontainer body 10 is locked as it is fixed in therecess 201 in response to insertion of the valve-integratingcontainer 100 into therecess 201 of theserver device 200. Also, thetip portion 23b of thevalve plug 23 of the valve-integratingcontainer 100 contacts theprojection portion 240a of theserver device 200 to be moved away from theopening portion 12a, and thus the liquid stored in the valve-integratingcontainer 100 can be withdrawn through theopening portion 12a. - With this configuration, there can be provided a liquid withdrawing
device 300 equipped with the downsized valve-integratingcontainer 100 which enables a liquid inside the container to be withdrawn easily and safely without leaving any residue. - According to the method for manufacturing the valve-integrating
container 100 of the embodiment, thebase portion 10a is cut off from the container having the openingportion 14 at the upper end side and the base at the lower end side, thereby forming the upper end side container having the second enlarged-diameter portion 11b at the lower portion. Thus, the upper end side container can be formed from a container of a commonly used shape. - Also, the upper end of the first enlarged-
diameter portion 11a of the lower end side container and the lower end of the second enlarged-diameter portion 11b of the upper end side container are joined together by heat welding, and after that thevalve mechanism 20 is inserted through the openingportion 14 of the upper end side container to be mounted to the reduced-diameter portion 12 of the lower end side container. This prevents thevalve mechanism 20 from contacting the heat source when joining the upper end side container to the lower end side container by heat welding. In addition, thevalve mechanism 20 is mounted to the lower end side container, the liquid is poured into thecontainer body 10, and then thecap 30 is fastened, and thus this seals the liquid in the valve-integratingcontainer 100. - Next, a second embodiment of the present invention will be described with reference to drawings.
- The second embodiment is a modification of the first embodiment, and is similar to the first embodiment unless otherwise described hereinafter.
- In the valve-integrating
container 100 of the first embodiment, thecap 30 is attached to the upper portion of thecontainer body 10. On the other hand, in a valve-integrating container 100' of the second embodiment, thecontainer body 10 has at its upper end side a reduced-diameter portion 12', an enlarged-diameter portion 11c, and a connecting portion 13' while having a valve mechanism 20' mounted to an inner circumferential surface of the reduced-diameter portion 12'. - As shown in
Fig. 14 , a container body 10' of the embodiment includes an enlarged-diameter portion 11', a reduced-diameter portion 12, the connectingportion 13, the reduced-diameter portion 12', and the connecting portion 13' and stores a liquid inside. The container body 10' is formed in a cylindrical shape extending along the axis X. The reduced-diameter portion 12' is provided above the enlarged-diameter portion 11' and connected to the enlarged-diameter portion 11' by the connecting portion 13'. - In the valve-integrating container 100', a
valve mechanism 20 mounted to the reduced-diameter portion 12 projects toward the enlarged-diameter portion 11', while the valve mechanism 20' mounted to the reduced-diameter portion 12' does not project toward the enlarged-diameter portion 11' but is accommodated inside the reduced-diameter portion 12'. This is in order not to leave the valve mechanism 20' projecting toward the enlarged-diameter portion 11' when joining the enlarged-diameter portions - Here, the structure of the valve mechanism 20' is similar to that of the
valve mechanism 20 described in the first embodiment and the description thereof will be omitted. - A
socket 500 shown inFig. 15 or asocket 600 shown inFig. 16 is attached to the reduced-diameter portion 12' shown inFig. 14 . - The
socket 500 shown inFig. 15 can maintain the inside of the container body 10' at atmospheric pressure. Thesocket 500 lets a gas flow into and out of the container body 10' in response to a change in the volume of the liquid in the container body 10', thereby maintaining the inside of the container body 10' at atmospheric pressure. In addition, according to thesocket 500, a gas generated from the liquid in the container body 10' would flow out of the container body 10', thereby inhibiting pressurization of the container body 10' due to the gas. - The
socket 500 shown inFig. 15 and thesocket 600 shown inFig. 16 are different in that thesocket 600 can let a gas (e.g., a nitrogen gas) from an external gas supply source (not shown) flow into the container body 10' by installing a tube 700 (a member indicated by a dashed line inFig. 16 ). - With a
socket 600 provided with the tube installed thereto, a gas is supplied from the gas supply source in response to a change in the volume of the liquid in the container body 10', thereby maintaining the inside of the container body 10' at an appropriate pressure. - A
socket 600 not provided with the tube installed thereto have similar functions as those of thesocket 500, and can maintain the inside of the container body 10' at atmospheric pressure. - The
socket 500 shown inFig. 15 includes alocking mechanism 510, asocket body 520, and avalve pressing member 530. - The
locking mechanism 510 establishes a locked state where the reduced-diameter portion 12' of the container body 10' is fixed to thesocket body 520 in response to insertion of the reduced-diameter portion 12' of the container body 10' into thesocket body 520 and establishes an unlocked state where the reduced-diameter portion 12' is removable from thesocket body 520 in response to the operator's unlocking operation. - The
locking mechanism 510 includes a lockingmember 511 and aspring 512. - The locking
member 511 is generally formed in a ring shape and is placed around the axis X. The lockingmember 511 has on its lower end surface an engaginggroove 511a extending in a radial direction orthogonal to the axis X. As shown inFig. 15 , the engaginggroove 511a engages anengaging pin 521 mounted to thesocket body 520. As a result, the moving direction of the lockingmember 511 is restricted such that the lockingmember 511 is movable only in a right-left direction inFig. 15 . - A biasing force is exerted by the
spring 512 on the lockingmember 511 in a direction from the left to the right inFig. 15 . When the lockingmember 511 is not held down, the lockingmember 511 is pressed in the right direction as inFig. 15 , to project beyond an inner circumferential surface of thesocket body 520. In this state, the lockingmember 511 projecting beyond the inner circumferential surface of thesocket body 520 engages a locking groove 12'c (refer toFig. 14 ) formed on an outer circumferential surface of the reduced-diameter portion 12'. Because the lockingmember 511 engages the locking groove 12'c, the locked state is established where the reduced-diameter portion 12' is fixed to thesocket 500. - When the operator is holding down the locking
member 511, the lockingmember 511 does not project beyond the inner circumferential surface of thesocket body 520. In this state, the lockingmember 511 is not engaged with the locking groove 12'c (refer toFig. 14 ) formed on the outer circumferential surface of the reduced-diameter portion 12'. Because the lockingmember 511 is not engaged with the locking groove 12'c, the unlocked state is established where the reduced-diameter portion 12' is removable from thesocket body 520. - The
valve pressing member 530 is shaped generally in a cylinder carrying at its outer circumferential surface external threads to be fastened to internal threads formed on the inner circumferential surface of thesocket body 520. Thevalve pressing member 530 is mounted to thesocket body 520 as its external threads formed on the outer circumferential surface are fastened to the internal threads of thesocket body 520. - The
valve pressing member 530 has aprojection portion 530a to press a tip portion 23'b of a valve plug 23' of the valve mechanism 20' downwardly along the axis X. When the reduced-diameter portion 12' is inserted in thesocket body 520, theprojection portion 530a contacts the tip portion 23'b of the valve plug 23' to move the valve plug 23' away from the opening portion 12'a. - The
valve pressing member 530 hasliquid flow channels 530b penetrating therethrough in the direction of the axis X, at a plurality of points around the axis X. When the valve plug 23' is away from the opening portion 12'a, a gas can flow into and out of the container body 10'. - The
socket 500 includes a filter part 40' between thesocket body 520 and thevalve pressing member 530. The filter part 40' has a structure similar to that of the first embodiment where themembrane filter 40a is sandwiched between thecoarse filters 40b. The filter part 40' lets a gas flow into and out of the container body 10', while preventing a liquid from flowing into and out of the container body 10'. - The
socket body 520 has on its inner circumferential surface an endless groove portion extending around the axis X, and anO ring 522 is attached to the groove portion. When the reduced-diameter portion 12' of the container body 10' is inserted in thesocket body 520, theO ring 522 contacts the outer circumferential surface of the reduced-diameter portion 12' to form a seal area along the entire circumference around the axis X. - The
socket 600 shown inFig. 16 includes alocking mechanism 610, asocket body 620, and a connectingmember 630. - The
locking mechanism 610 establishes a locked state where the reduced-diameter portion 12' of the container body 10' is fixed to thesocket body 620 in response to insertion of the reduced-diameter portion 12' into thesocket body 620 and establishes an unlocked state where the reduced-diameter portion 12' is removable from thesocket body 620 in response to the operator's unlocking operation. - The
locking mechanism 610 includes a lockingmember 611 and aspring 612. - The locking
member 611 has on its lower end surface an engaginggroove 611a extending in a radial direction orthogonal to the axis X. As shown inFig. 16 , the engaginggroove 611a engages anengaging pin 621 mounted to thesocket body 620. As a result, the moving direction of the lockingmember 611 is restricted such that the lockingmember 611 is movable only in a right-left direction inFig. 16 . - Here, the
locking mechanism 610 ofFig. 16 has a structure similar to that of thelocking mechanism 510 inFig. 15 , and the description thereof will be omitted. - The
socket body 620 has aprojection portion 620a to press the tip portion 23'b of the valve plug 23' of the valve mechanism 20' downwardly along the axis X. When the reduced-diameter portion 12' is inserted in thesocket body 620, theprojection portion 620a contacts the tip portion 23'b of the valve plug 23' to move the valve plug 23' away from the opening portion 12'a. - The
socket body 620 hasliquid flow channels 620b penetrating therethrough in the direction of the axis X, at a plurality of points around the axis X. When the valve plug 23' is away from the opening portion 12'a, a gas can flow into and out of the container body 10'. - The
socket body 620 has the connectingmember 630 mounted to its upper end portion. The connectingmember 630 connects thesocket body 620 to piping (not shown). The piping is inserted into the connectingmember 630 to be fixed to the connectingmember 630. When thetube 700 is connected to the connectingmember 630, a gas can flow into thesocket body 620 from the external gas supply source (not shown). - The connecting
member 630 has on its inner circumferential surface an endless groove portion extending around the axis X. AnO ring 631, which is a ring-shaped elastic member extending around the axis X, is attached to the groove portion. TheO ring 631 contacts an outer circumferential surface of thetube 700 to form a seal area along the entire circumference around the axis X. - The
socket 600 includes a filter part 40' between thesocket body 620 and the connectingmember 630. The filter part 40' has a structure similar to that shown inFig. 15 and similar to the configuration in which themembrane filter 40a is sandwiched between thecoarse filters 40b as in the first embodiment. The filter part 40' lets a gas flow into and out of the container body 10', while preventing a liquid from flowing into and out of the container body 10'. - The
socket body 620 has on its inner circumferential surface an endless groove portion extending around the axis X, and anO ring 622 is attached to the groove portion. When the reduced-diameter portion 12' of the container body 10' is inserted in thesocket body 620, theO ring 622 contacts the outer circumferential surface of the reduced-diameter portion 12' to form a seal area along the entire circumference around the axis X. - Next, a structure for preventing misconnection between the valve-integrating container 100' and the server device 200' will be described using
Fig. 17 and Fig. 18 . - As shown in
Fig. 17 , amisconnection preventing ring 15 is attached to the outer circumferential surface of the reduced-diameter portion 12 of the valve-integrating container 100' of the embodiment. Themisconnection preventing ring 15 hasprojection portions - Meanwhile, a
recess 201 of the server device 200' to which the valve-integrating container 100' is mounted has on its inner circumferentialsurface groove portions server device 200 of the first embodiment except that thegroove portions - As shown in
Fig. 18 , the positions of thegroove portions projection portions Fig. 17 around the axis X. Accordingly, in mounting the valve-integrating container 100' to the server device 200', theprojection portion 15a is inserted into thegroove portion 211, and theprojection portion 15b is inserted into thegroove portion 212. The valve-integrating container 100' is mounted to the server device 200' in this way. - The valve-integrating container 100' is provided with the
projection portions groove portions - Thus in the embodiment, the valve-integrating container 100' is provided with the
projection portions groove portions - For example, a
projection portion 15c may be provided instead of theprojection portion 15b shown inFig. 17 , and agroove portion 213 may be provided instead of thegroove portion 212 shown inFig. 18 . This can provide another pair of a valve-integrating container 100' and a server device 200' which is different from the pair of the valve-integrating container 100' and the server device 200' shown inFigs. 17 and 18 . - According to the embodiment, the
projection portions groove portions groove portions projection portions - Next, a third embodiment of the present invention will be described with reference to the drawings.
- The third embodiment is a modification of the first embodiment and is similar to the first embodiment unless otherwise described hereinafter.
- The third embodiment has a cap 30', a modification of the
cap 30 of the first embodiment. - As shown in
Fig. 19 , the cap 30' of the embodiment has afilter part 40" attached to its upper end surface. - As shown in
Fig. 20 , thefilter part 40" includes amembrane filter 40"a,coarse filters 40"b, alid portion 40"c, afilter attaching member 40"e, and a sealingcap 40"f. - The
membrane filter 40"a and thecoarse filters 40"b are respectively similar to themembrane filter 40a and thecoarse filters 40b of the first embodiment. - The
membrane filter 40"a and thecoarse filters 40"b are placed as they are sandwiched between thelid portion 40"c and thefilter attaching member 40"e. Thelid portion 40"c is fixed to the cap 30' by, for example, welding. - The
lid portion 40"c has external threads on its upper portion outer circumferential surface, and the sealingcap 40"f with internal threads on its inner circumferential surface is attached to the external threads. - The
container body 10 having the cap 30' without the sealingcap 40"f attached to the cap 30' lets a gas flow into and out of thecontainer body 10 through thefilter part 40". Meanwhile, thecontainer body 10 having the cap 30' with the sealingcap 40"f attached to the cap 30' prevents a gas from flowing into and out of thecontainer body 10 through thefilter part 40". - If the sealing
cap 40"f is not attached to the cap 30', a fitting (e.g., a luer fitting) for connecting piping (not shown) in place of the sealingcap 40"f may be attached to the upper portion external threads of thelid portion 40"c. - According to the embodiment, a gas is prevented from flowing into and out of the
container body 10 by attaching the sealingcap 40"f to the cap 30', and a gas is let flow into and out of thecontainer body 10 by removing the sealingcap 40"f from the cap 30'. - The present invention is not limited to the above embodiment, and modifications may be made as appropriate without departing from the scope of the present invention.
Claims (7)
- A valve-integrating container (100), comprising:a container body (10) formed in a cylindrical shape extending in an axial direction, the container body (10) having an enlarged-diameter portion (11), a reduced-diameter portion (12) provided below the enlarged-diameter portion, and a connecting portion (13) connecting the enlarged-diameter portion (11) and the reduced-diameter portion (12), anda valve mechanism (20) mounted to the reduced-diameter portion (12) of the container body (10) and configured to switch whether a liquid stored in the container body (10) is allowed to flow out through a first opening portion (12a) provided at a lower end of the reduced-diameter portion (12),
the valve mechanism (20) including:a spring (21) disposed along the axial direction;a spring supporting part (22) supporting one end portion of the spring (21); anda valve plug (23) disposed between the spring supporting part (22) and the first opening portion (12a) and receiving a biasing force toward the first opening portion (12a) from another end portion of the spring (21),the spring supporting part (22) including:a liquid flow channel (22a) formed in a cylindrical shape extending along the axial direction;
a lower end portion (22b) mounted to an inner circumferential surface (12b) of the reduced-diameter portion (12) ;
an upper end portion (22c) projecting toward the enlarged-diameter portion (11); and
a first guide groove (22d) formed on an outer circumferential surface thereof for guiding a liquid stored in the connecting portion downwardly in the axial direction, characterized in thatthe valve plug (23) has a second guide groove (23a) formed on an outer circumferential surface thereof for guiding the liquid guided by the first guide groove (22d), downwardly in the axial direction to the first opening portion (12a). - A valve-integrating container (100) according to claim 1, further comprising a filter part (40) attached to an upper portion of the container body (10), the filter part (40) being configured to let a gas flow into and out of the container body (10) while preventing a liquid from flowing into and out of the container body (10).
- A valve-integrating container (100) according to claim 2, wherein
the container body (10) includes: a cylindrical second opening portion (14) provided above the enlarged-diameter portion (11), the second opening portion (14) extending in the axial direction and carrying external threads (14a) on an outer circumferential surface thereof; and
a cap (30) carrying on an inner circumferential surface thereof internal threads (30a) configured to be fastened to the external threads (14a) formed on the second opening portion (14), and
the filter part (40) is attached to the cap (30). - A valve-integrating container (100) according to any one of claims 1 to 3, wherein
the enlarged-diameter portion (11) includes a first enlarged-diameter portion (11a) integrally molded with the reduced-diameter portion (12) and the connecting portion (13) and a second enlarged-diameter portion (11b) provided above the first enlarged-diameter portion (11a),
an upper end of the first enlarged-diameter portion (11a) and a lower end of the second enlarged-diameter portion (11b) are joined together by heat welding. - A liquid withdrawing device (300) comprising:a valve-integrating container (100) according to any one of claims 1 to 4; anda server device (200) removably receiving the valve-integrating container (100) and configured to withdraw a liquid stored in the valve-integrating container (100),
the server device (200) including:a recess (201) into which the reduced-diameter portion (12) of the container body (10) is inserted;a projection portion (240a) contacting a tip portion (23b) of the valve plug (23) when the reduced-diameter portion (12) is inserted in the recess (201), to move the valve plug (23) away from the first opening portion (12a); anda locking mechanism (280) establishing a locked state where the reduced-diameter portion (12) is fixed to the recess (201) in response to insertion of the reduced-diameter portion (12) into the recess (201) and establishing an unlocked state where the reduced-diameter portion (12) is removable from the recess (201) in response to an operator's unlocking operation. - A liquid withdrawing device according to claim 5, wherein the recess (21) of the server device (200) has on an inner circumferential surface thereof groove portions (211, 212) extending in the axial direction at a plurality of points around the axis,
the reduced-diameter portion (12) of the valve-integrating container (100) has on an outer circumferential surface thereof projection portions (15a, 15b) extending in the axial direction at a plurality of points around the axis,
a plurality of positions of the groove portions (211, 212) around the axis correspond to a plurality of positions of the projection portions (211, 212) around the axis, and
the valve-integrating container (100) is mounted to the server device (200) by inserting the projection portions (211, 212) at the plurality of points into the groove portions (211, 212) at the plurality of points. - A method for manufacturing a valve-integrating container (100) comprising the steps of:forming a lower end side container formed in a cylindrical shape extending in an axial direction and including a first enlarged-diameter portion (11a), a reduced-diameter portion (12) provided below the first enlarged-diameter portion (11a), and a connecting portion (13) connecting the first enlarged-diameter portion (11a) and the reduced-diameter portion (12);forming an upper end side container having a second enlarged-diameter portion (11b) at a lower portion thereof by cutting off a base portion from a container having a second opening portion (14) at an upper end side and a base at a lower end side;joining by heat welding an upper end of the first enlarged-diameter portion (11a) of the lower end side container to a lower end of the second enlarged-diameter portion (11b) of the upper end side container;mounting a valve mechanism (20) configured to switch whether a liquid is allowed to flow out through a first opening portion (12a) provided at a lower end of the reduced-diameter portion (12), to the reduced-diameter portion (12) of the lower end side container by inserting the valve mechanism (20) through the second opening portion (14); andfastening a cap (30) carrying internal threads (30a) on an inner circumferential surface thereof to external threads (14a) provided on an outer circumferential surface of the second opening portion (14).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014236896A JP6373734B2 (en) | 2014-11-21 | 2014-11-21 | VALVE INTEGRATED CONTAINER, LIQUID EXTRACTION DEVICE HAVING THE SAME, AND METHOD FOR PRODUCING VALVE INTEGRATED CONTAINER |
Publications (3)
Publication Number | Publication Date |
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EP3023383A2 true EP3023383A2 (en) | 2016-05-25 |
EP3023383A3 EP3023383A3 (en) | 2016-08-24 |
EP3023383B1 EP3023383B1 (en) | 2018-01-03 |
Family
ID=54705374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15194842.9A Active EP3023383B1 (en) | 2014-11-21 | 2015-11-17 | Valve-integrating container, liquid withdrawing device equipped with the same, and method for manufacturing valve-integrating container |
Country Status (4)
Country | Link |
---|---|
US (1) | US9517925B2 (en) |
EP (1) | EP3023383B1 (en) |
JP (1) | JP6373734B2 (en) |
KR (1) | KR102465685B1 (en) |
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WO2017220261A1 (en) * | 2016-06-20 | 2017-12-28 | Aptar Radolfzell Gmbh | Liquid dispenser |
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JP6642905B2 (en) * | 2015-12-17 | 2020-02-12 | サーパス工業株式会社 | Connectors and sockets |
JP6653563B2 (en) | 2015-12-17 | 2020-02-26 | サーパス工業株式会社 | Connectors and sockets |
JP7297285B2 (en) * | 2018-01-31 | 2023-06-26 | 興研株式会社 | Filter unit, mask with filter unit |
KR102260490B1 (en) * | 2019-07-09 | 2021-06-02 | 이순기 | Mixer integrated cold and hot water mixing valve device |
US20210085296A1 (en) * | 2019-09-23 | 2021-03-25 | Spectrum Solutions, Llc | Sample collection kit including cap having selectively openable diaphragm valve |
US10889486B1 (en) * | 2020-09-01 | 2021-01-12 | Rodney Laible | Dispensing and/or dosing system |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2017220261A1 (en) * | 2016-06-20 | 2017-12-28 | Aptar Radolfzell Gmbh | Liquid dispenser |
CN109311568A (en) * | 2016-06-20 | 2019-02-05 | 阿普塔尔拉多尔夫策尔有限责任公司 | Liquid distributor |
US10781020B2 (en) | 2016-06-20 | 2020-09-22 | Aptar Radolfzell Gmbh | Liquid dispenser |
CN109311568B (en) * | 2016-06-20 | 2021-03-05 | 阿普塔尔拉多尔夫策尔有限责任公司 | Liquid dispenser |
CN112693735A (en) * | 2016-06-20 | 2021-04-23 | 阿普塔尔拉多尔夫策尔有限责任公司 | Liquid dispenser |
EP3954626A1 (en) * | 2016-06-20 | 2022-02-16 | Aptar Radolfzell GmbH | Liquid dispenser |
US11390435B2 (en) | 2016-06-20 | 2022-07-19 | Aptar Radolfzell Gmbh | Liquid dispenser |
Also Published As
Publication number | Publication date |
---|---|
EP3023383A3 (en) | 2016-08-24 |
EP3023383B1 (en) | 2018-01-03 |
US9517925B2 (en) | 2016-12-13 |
US20160145091A1 (en) | 2016-05-26 |
KR102465685B1 (en) | 2022-11-11 |
JP2016098018A (en) | 2016-05-30 |
KR20160061258A (en) | 2016-05-31 |
JP6373734B2 (en) | 2018-08-15 |
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